23121203030132 has 24 divisors (see below), whose sum is σ = 41861658223560. Its totient is φ = 11160811307520.

The previous prime is 23121203030129. The next prime is 23121203030137. The reversal of 23121203030132 is 23103030212132.

It can be written as a sum of positive squares in 4 ways, for example, as 3372386996836 + 19748816033296 = 1836406^2 + 4443964^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23121203030098 and 23121203030107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23121203030137) 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, 9124433 + ... + 11379704.

It is an arithmetic number, because the mean of its divisors is an integer number (1744235759315).

Almost surely, 2^{23121203030132} is an apocalyptic number.

It is an amenable number.

23121203030132 is a deficient number, since it is larger than the sum of its proper divisors (18740455193428).

23121203030132 is a wasteful number, since it uses less digits than its factorization.

23121203030132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20513891 (or 20513889 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 23121203030132 its reverse (23103030212132), we get a palindrome (46224233242264).

The spelling of 23121203030132 in words is "twenty-three trillion, one hundred twenty-one billion, two hundred three million, thirty thousand, one hundred thirty-two".