102113120131 has 4 divisors (see below), whose sum is σ = 111396131064. Its totient is φ = 92830109200.

The previous prime is 102113120107. The next prime is 102113120141. The reversal of 102113120131 is 131021311201.

It is a happy number.

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 102113120131 - 2¹¹ = 102113118083 is a prime.

It is a super-2 number, since 2×102113120131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102113120101) 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, 4641505450 + ... + 4641505471.

It is an arithmetic number, because the mean of its divisors is an integer number (27849032766).

Almost surely, 2^102113120131 is an apocalyptic number.

102113120131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102113120131 is a deficient number, since it is larger than the sum of its proper divisors (9283010933).

102113120131 is an equidigital number, since it uses as much as digits as its factorization.

102113120131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9283010932.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 102113120131 its reverse (131021311201), we get a palindrome (233134431332).

The spelling of 102113120131 in words is "one hundred two billion, one hundred thirteen million, one hundred twenty thousand, one hundred thirty-one".