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103320111031031 = 785531315291727
BaseRepresentation
bin10111011111100000010110…
…100001000010001011110111
3111112211022021011222001200002
4113133200112201002023313
5102020244041410443111
61003424334224341515
730522426445233356
oct2737402641021367
9445738234861602
10103320111031031
112aa148a4144454
12b70816817489b
134586077185abb
141b72a11b9599d
15be28d707163b
hex5df8168422f7

103320111031031 has 4 divisors (see below), whose sum is σ = 103321426401312. Its totient is φ = 103318795660752.

The previous prime is 103320111030991. The next prime is 103320111031079. The reversal of 103320111031031 is 130130111023301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103320111031031 - 226 = 103320043922167 is a prime.

It is a super-2 number, since 2×1033201110310312 (a number of 29 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 = 103320111030994 and 103320111031012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103320111031531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657567311 + ... + 657724416.

It is an arithmetic number, because the mean of its divisors is an integer number (25830356600328).

Almost surely, 2103320111031031 is an apocalyptic number.

103320111031031 is a deficient number, since it is larger than the sum of its proper divisors (1315370281).

103320111031031 is an equidigital number, since it uses as much as digits as its factorization.

103320111031031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315370280.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 103320111031031 its reverse (130130111023301), we get a palindrome (233450222054332).

The spelling of 103320111031031 in words is "one hundred three trillion, three hundred twenty billion, one hundred eleven million, thirty-one thousand, thirty-one".

Divisors: 1 78553 1315291727 103320111031031