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122103034531 = 1745735394441
BaseRepresentation
bin111000110110111101…
…0000111001010100011
3102200011120101211112021
41301231322013022203
54000031334101111
6132032055442311
711551553445262
oct1615572071243
9380146354467
10122103034531
1147868a86095
121b7b8086397
13b68bac84ba
145ca47825d9
15329991bd71
hex1c6de872a3

122103034531 has 16 divisors (see below), whose sum is σ = 129634261920. Its totient is φ = 114610821120.

The previous prime is 122103034511. The next prime is 122103034541. The reversal of 122103034531 is 135430301221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 122103034531 - 25 = 122103034499 is a prime.

It is a super-2 number, since 2×1221030345312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122103034496 and 122103034505.

It is not an unprimeable number, because it can be changed into a prime (122103034511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27492271 + ... + 27496711.

It is an arithmetic number, because the mean of its divisors is an integer number (8102141370).

Almost surely, 2122103034531 is an apocalyptic number.

122103034531 is a deficient number, since it is larger than the sum of its proper divisors (7531227389).

122103034531 is a wasteful number, since it uses less digits than its factorization.

122103034531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8454.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 122103034531 its reverse (135430301221), we get a palindrome (257533335752).

The spelling of 122103034531 in words is "one hundred twenty-two billion, one hundred three million, thirty-four thousand, five hundred thirty-one".

Divisors: 1 17 457 3539 4441 7769 60163 75497 1617323 2029537 15716699 27494491 34502129 267183883 7182531443 122103034531