231403222130 has 16 divisors (see below), whose sum is σ = 416998603224. Its totient is φ = 92456221440.

The previous prime is 231403222123. The next prime is 231403222133. The reversal of 231403222130 is 31222304132.

It can be written as a sum of positive squares in 4 ways, for example, as 111921695209 + 119481526921 = 334547^2 + 345661^2 .

It is a super-2 number, since 2×231403222130² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231403222096 and 231403222105.

It is not an unprimeable number, because it can be changed into a prime (231403222133) 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, 13124177 + ... + 13141796.

Almost surely, 2^231403222130 is an apocalyptic number.

231403222130 is a deficient number, since it is larger than the sum of its proper divisors (185595381094).

231403222130 is a wasteful number, since it uses less digits than its factorization.

231403222130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26266861.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 231403222130 its reverse (31222304132), we get a palindrome (262625526262).

The spelling of 231403222130 in words is "two hundred thirty-one billion, four hundred three million, two hundred twenty-two thousand, one hundred thirty".