233131432130 has 16 divisors (see below), whose sum is σ = 419657152824. Its totient is φ = 93248000640.

The previous prime is 233131432091. The next prime is 233131432133. The reversal of 233131432130 is 31234131332.

It can be written as a sum of positive squares in 4 ways, for example, as 192855357409 + 40276074721 = 439153^2 + 200689^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 233131432130.

It is not an unprimeable number, because it can be changed into a prime (233131432133) 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, 353411 + ... + 768870.

Almost surely, 2^233131432130 is an apocalyptic number.

233131432130 is a deficient number, since it is larger than the sum of its proper divisors (186525720694).

233131432130 is a wasteful number, since it uses less digits than its factorization.

233131432130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143061.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 233131432130 its reverse (31234131332), we get a palindrome (264365563462).

The spelling of 233131432130 in words is "two hundred thirty-three billion, one hundred thirty-one million, four hundred thirty-two thousand, one hundred thirty".