102431220231 has 8 divisors (see below), whose sum is σ = 136869940480. Its totient is φ = 68139990072.

The previous prime is 102431220187. The next prime is 102431220233. The reversal of 102431220231 is 132022134201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102431220231 - 2¹⁰ = 102431219207 is a prime.

It is a super-2 number, since 2×102431220231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102431220198 and 102431220207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102431220233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36870901 + ... + 36873678.

It is an arithmetic number, because the mean of its divisors is an integer number (17108742560).

Almost surely, 2^102431220231 is an apocalyptic number.

102431220231 is a deficient number, since it is larger than the sum of its proper divisors (34438720249).

102431220231 is an equidigital number, since it uses as much as digits as its factorization.

102431220231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73745045.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 102431220231 its reverse (132022134201), we get a palindrome (234453354432).

The spelling of 102431220231 in words is "one hundred two billion, four hundred thirty-one million, two hundred twenty thousand, two hundred thirty-one".