231430251101 has 24 divisors (see below), whose sum is σ = 280496514816. Its totient is φ = 190175549760.

The previous prime is 231430251097. The next prime is 231430251103. The reversal of 231430251101 is 101152034132.

231430251101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231430251101 - 2² = 231430251097 is a prime.

It is a super-2 number, since 2×231430251101² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231430251103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 549416 + ... + 874481.

It is an arithmetic number, because the mean of its divisors is an integer number (11687354784).

Almost surely, 2^231430251101 is an apocalyptic number.

It is an amenable number.

231430251101 is a deficient number, since it is larger than the sum of its proper divisors (49066263715).

231430251101 is a wasteful number, since it uses less digits than its factorization.

231430251101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424049 (or 1424042 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 231430251101 its reverse (101152034132), we get a palindrome (332582285233).

The spelling of 231430251101 in words is "two hundred thirty-one billion, four hundred thirty million, two hundred fifty-one thousand, one hundred one".