23213031331 has 8 divisors (see below), whose sum is σ = 26978826240. Its totient is φ = 19559648328.

The previous prime is 23213031271. The next prime is 23213031341. The reversal of 23213031331 is 13313031232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23213031331 - 2¹³ = 23213023139 is a prime.

It is a super-2 number, since 2×23213031331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23213031341) 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, 28102531 + ... + 28103356.

It is an arithmetic number, because the mean of its divisors is an integer number (3372353280).

Almost surely, 2^23213031331 is an apocalyptic number.

23213031331 is a deficient number, since it is larger than the sum of its proper divisors (3765794909).

23213031331 is an equidigital number, since it uses as much as digits as its factorization.

23213031331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56205953.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 23213031331 its reverse (13313031232), we get a palindrome (36526062563).

Subtracting from 23213031331 its reverse (13313031232), we obtain a palindrome (9900000099).

The spelling of 23213031331 in words is "twenty-three billion, two hundred thirteen million, thirty-one thousand, three hundred thirty-one".