23121012322 has 4 divisors (see below), whose sum is σ = 34681518486. Its totient is φ = 11560506160.

The previous prime is 23121012319. The next prime is 23121012349. The reversal of 23121012322 is 22321012132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 17803831761 + 5317180561 = 133431^2 + 72919^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23121012322.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5780253079 + ... + 5780253082.

Almost surely, 2^23121012322 is an apocalyptic number.

23121012322 is a deficient number, since it is larger than the sum of its proper divisors (11560506164).

23121012322 is a wasteful number, since it uses less digits than its factorization.

23121012322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11560506163.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 23121012322 its reverse (22321012132), we get a palindrome (45442024454).

The spelling of 23121012322 in words is "twenty-three billion, one hundred twenty-one million, twelve thousand, three hundred twenty-two".