231021010231 has 8 divisors (see below), whose sum is σ = 252041201424. Its totient is φ = 210003865920.

The previous prime is 231021010211. The next prime is 231021010307. The reversal of 231021010231 is 132010120132.

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

It is a cyclic number.

It is not a de Polignac number, because 231021010231 - 2⁹ = 231021009719 is a prime.

It is a super-2 number, since 2×231021010231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231021010211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601716 + ... + 907801.

It is an arithmetic number, because the mean of its divisors is an integer number (31505150178).

Almost surely, 2^231021010231 is an apocalyptic number.

231021010231 is a deficient number, since it is larger than the sum of its proper divisors (21020191193).

231021010231 is a wasteful number, since it uses less digits than its factorization.

231021010231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523441.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 231021010231 its reverse (132010120132), we get a palindrome (363031130363).

The spelling of 231021010231 in words is "two hundred thirty-one billion, twenty-one million, ten thousand, two hundred thirty-one".