23210031213 has 6 divisors (see below), whose sum is σ = 33525600654. Its totient is φ = 15473354136.

The previous prime is 23210031199. The next prime is 23210031223. The reversal of 23210031213 is 31213001232.

It can be written as a sum of positive squares in only one way, i.e., 19723955364 + 3486075849 = 140442^2 + 59043^2 .

It is not a de Polignac number, because 23210031213 - 2⁸ = 23210030957 is a prime.

It is a super-3 number, since 3×23210031213³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23210031223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1289446170 + ... + 1289446187.

It is an arithmetic number, because the mean of its divisors is an integer number (5587600109).

Almost surely, 2^23210031213 is an apocalyptic number.

It is an amenable number.

23210031213 is a deficient number, since it is larger than the sum of its proper divisors (10315569441).

23210031213 is a wasteful number, since it uses less digits than its factorization.

23210031213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2578892363 (or 2578892360 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 23210031213 its reverse (31213001232), we get a palindrome (54423032445).

The spelling of 23210031213 in words is "twenty-three billion, two hundred ten million, thirty-one thousand, two hundred thirteen".