23102222013 has 12 divisors (see below), whose sum is σ = 35936789980. Its totient is φ = 14216751936.

The previous prime is 23102222009. The next prime is 23102222021. The reversal of 23102222013 is 31022220132.

It can be written as a sum of positive squares in 2 ways, for example, as 9724523769 + 13377698244 = 98613^2 + 115662^2 .

It is not a de Polignac number, because 23102222013 - 2² = 23102222009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23102222093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98727328 + ... + 98727561.

Almost surely, 2^23102222013 is an apocalyptic number.

It is an amenable number.

23102222013 is a deficient number, since it is larger than the sum of its proper divisors (12834567967).

23102222013 is a wasteful number, since it uses less digits than its factorization.

23102222013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197454908 (or 197454905 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 23102222013 its reverse (31022220132), we get a palindrome (54124442145).

It can be divided in two parts, 2 and 3102222013, that multiplied together give a palindrome (6204444026).

The spelling of 23102222013 in words is "twenty-three billion, one hundred two million, two hundred twenty-two thousand, thirteen".