231441431344402 has 16 divisors (see below), whose sum is σ = 348305544397440. Its totient is φ = 115339684362768.

The previous prime is 231441431344393. The next prime is 231441431344411. The reversal of 231441431344402 is 204443134144132.

It is an interprime number because it is at equal distance from previous prime (231441431344393) and next prime (231441431344411).

It is a super-2 number, since 2×231441431344402² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

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, 20707098 + ... + 29860789.

It is an arithmetic number, because the mean of its divisors is an integer number (21769096524840).

Almost surely, 2^{231441431344402} is an apocalyptic number.

231441431344402 is a deficient number, since it is larger than the sum of its proper divisors (116864113053038).

231441431344402 is a wasteful number, since it uses less digits than its factorization.

231441431344402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50575425.

The product of its (nonzero) digits is 442368, while the sum is 40.

Adding to 231441431344402 its reverse (204443134144132), we get a palindrome (435884565488534).

The spelling of 231441431344402 in words is "two hundred thirty-one trillion, four hundred forty-one billion, four hundred thirty-one million, three hundred forty-four thousand, four hundred two".