231001431311002 has 16 divisors (see below), whose sum is σ = 378002576598912. Its totient is φ = 105000585469920.

The previous prime is 231001431310961. The next prime is 231001431311029. The reversal of 231001431311002 is 200113134100132.

It is a super-2 number, since 2×231001431311002² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62774518 + ... + 66352414.

It is an arithmetic number, because the mean of its divisors is an integer number (23625161037432).

Almost surely, 2^{231001431311002} is an apocalyptic number.

231001431311002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231001431311002 is a deficient number, since it is larger than the sum of its proper divisors (147001145287910).

231001431311002 is a wasteful number, since it uses less digits than its factorization.

231001431311002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6512613.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 231001431311002 its reverse (200113134100132), we get a palindrome (431114565411134).

The spelling of 231001431311002 in words is "two hundred thirty-one trillion, one billion, four hundred thirty-one million, three hundred eleven thousand, two".