102020130431 has 16 divisors (see below), whose sum is σ = 116125954560. Its totient is φ = 89029872000.

The previous prime is 102020130379. The next prime is 102020130467. The reversal of 102020130431 is 134031020201.

It is a cyclic number.

It is not a de Polignac number, because 102020130431 - 2¹⁴ = 102020114047 is a prime.

It is a super-2 number, since 2×102020130431² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102020130031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3344945 + ... + 3375306.

It is an arithmetic number, because the mean of its divisors is an integer number (7257872160).

Almost surely, 2^102020130431 is an apocalyptic number.

102020130431 is a deficient number, since it is larger than the sum of its proper divisors (14105824129).

102020130431 is a wasteful number, since it uses less digits than its factorization.

102020130431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6720334.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 102020130431 its reverse (134031020201), we get a palindrome (236051150632).

The spelling of 102020130431 in words is "one hundred two billion, twenty million, one hundred thirty thousand, four hundred thirty-one".