102520750431 has 8 divisors (see below), whose sum is σ = 149121091584. Its totient is φ = 62133788120.

The previous prime is 102520750421. The next prime is 102520750489. The reversal of 102520750431 is 134057025201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102520750431 - 2⁵ = 102520750399 is a prime.

It is a super-2 number, since 2×102520750431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102520750421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1553344671 + ... + 1553344736.

It is an arithmetic number, because the mean of its divisors is an integer number (18640136448).

Almost surely, 2^102520750431 is an apocalyptic number.

102520750431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102520750431 is a deficient number, since it is larger than the sum of its proper divisors (46600341153).

102520750431 is a wasteful number, since it uses less digits than its factorization.

102520750431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3106689421.

The product of its (nonzero) digits is 8400, while the sum is 30.

Adding to 102520750431 its reverse (134057025201), we get a palindrome (236577775632).

The spelling of 102520750431 in words is "one hundred two billion, five hundred twenty million, seven hundred fifty thousand, four hundred thirty-one".