102302431421 has 16 divisors (see below), whose sum is σ = 106776584640. Its totient is φ = 97893344640.

The previous prime is 102302431409. The next prime is 102302431433. The reversal of 102302431421 is 124134203201.

It is an interprime number because it is at equal distance from previous prime (102302431409) and next prime (102302431433).

It is a de Polignac number, because none of the positive numbers 2^k-102302431421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102302421421) 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, 2972705 + ... + 3006921.

It is an arithmetic number, because the mean of its divisors is an integer number (6673536540).

Almost surely, 2^102302431421 is an apocalyptic number.

It is an amenable number.

102302431421 is a deficient number, since it is larger than the sum of its proper divisors (4474153219).

102302431421 is a wasteful number, since it uses less digits than its factorization.

102302431421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35164.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 102302431421 its reverse (124134203201), we get a palindrome (226436634622).

The spelling of 102302431421 in words is "one hundred two billion, three hundred two million, four hundred thirty-one thousand, four hundred twenty-one".