231302032122 has 16 divisors (see below), whose sum is σ = 528690359232. Its totient is φ = 66086294880.

The previous prime is 231302032103. The next prime is 231302032133. The reversal of 231302032122 is 221230203132.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 2753595579 + ... + 2753595662.

It is an arithmetic number, because the mean of its divisors is an integer number (33043147452).

Almost surely, 2^231302032122 is an apocalyptic number.

231302032122 is an abundant number, since it is smaller than the sum of its proper divisors (297388327110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231302032122 is a wasteful number, since it uses less digits than its factorization.

231302032122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5507191253.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 231302032122 its reverse (221230203132), we get a palindrome (452532235254).

The spelling of 231302032122 in words is "two hundred thirty-one billion, three hundred two million, thirty-two thousand, one hundred twenty-two".