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103123122312320 = 27511196431198999
BaseRepresentation
bin10111011100101000111001…
…000100101101010010000000
3111112010110210200221022112022
4113130220321010231102000
5102004032123302443240
61003154035224421012
730502254050606165
oct2734507104552200
9445113720838468
10103123122312320
112a9492a8149480
12b695b51017768
13457061299ac96
141b672859b606c
15bdc70816d9b5
hex5dca3912d480

103123122312320 has 256 divisors, whose sum is σ = 283535683200000. Its totient is φ = 35470389473280.

The previous prime is 103123122312311. The next prime is 103123122312337. The reversal of 103123122312320 is 23213221321301.

It is a super-2 number, since 2×1031231223123202 (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 103123122312320.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85408181 + ... + 86607179.

It is an arithmetic number, because the mean of its divisors is an integer number (1107561262500).

Almost surely, 2103123122312320 is an apocalyptic number.

103123122312320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103123122312320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141767841600000).

103123122312320 is an abundant number, since it is smaller than the sum of its proper divisors (180412560887680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103123122312320 is a wasteful number, since it uses less digits than its factorization.

103123122312320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199691 (or 1199679 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 103123122312320 its reverse (23213221321301), we get a palindrome (126336343633621).

The spelling of 103123122312320 in words is "one hundred three trillion, one hundred twenty-three billion, one hundred twenty-two million, three hundred twelve thousand, three hundred twenty".