102523255542 has 48 divisors (see below), whose sum is σ = 235507272000. Its totient is φ = 32142830832.

The previous prime is 102523255531. The next prime is 102523255559. The reversal of 102523255542 is 245552325201.

102523255542 is a `hidden beast` number, since 10 + 2 + 52 + 3 + 2 + 55 + 542 = 666.

It is a super-2 number, since 2×102523255542² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102523255497 and 102523255506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1030792 + ... + 1125867.

It is an arithmetic number, because the mean of its divisors is an integer number (4906401500).

Almost surely, 2^102523255542 is an apocalyptic number.

102523255542 is an abundant number, since it is smaller than the sum of its proper divisors (132984016458).

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

102523255542 is a wasteful number, since it uses less digits than its factorization.

102523255542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156825 (or 2156822 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 102523255542 in words is "one hundred two billion, five hundred twenty-three million, two hundred fifty-five thousand, five hundred forty-two".