102563248631 has 4 divisors (see below), whose sum is σ = 102567674352. Its totient is φ = 102558822912.

The previous prime is 102563248603. The next prime is 102563248639. The reversal of 102563248631 is 136842365201.

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 102563248631 - 2²² = 102559054327 is a prime.

It is a super-2 number, since 2×102563248631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102563248639) 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, 2177915 + ... + 2224508.

It is an arithmetic number, because the mean of its divisors is an integer number (25641918588).

Almost surely, 2^102563248631 is an apocalyptic number.

102563248631 is a deficient number, since it is larger than the sum of its proper divisors (4425721).

102563248631 is an equidigital number, since it uses as much as digits as its factorization.

102563248631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4425720.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 102563248631 in words is "one hundred two billion, five hundred sixty-three million, two hundred forty-eight thousand, six hundred thirty-one".