23031220132 has 6 divisors (see below), whose sum is σ = 40304635238. Its totient is φ = 11515610064.

The previous prime is 23031220097. The next prime is 23031220181. The reversal of 23031220132 is 23102213032.

It can be written as a sum of positive squares in only one way, i.e., 18750920356 + 4280299776 = 136934^2 + 65424^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2878902513 + ... + 2878902520.

Almost surely, 2^23031220132 is an apocalyptic number.

It is an amenable number.

23031220132 is a deficient number, since it is larger than the sum of its proper divisors (17273415106).

23031220132 is a wasteful number, since it uses less digits than its factorization.

23031220132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5757805037 (or 5757805035 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23031220132 its reverse (23102213032), we get a palindrome (46133433164).

The spelling of 23031220132 in words is "twenty-three billion, thirty-one million, two hundred twenty thousand, one hundred thirty-two".