213113023331 has 16 divisors (see below), whose sum is σ = 233518909344. Its totient is φ = 193295165184.

The previous prime is 213113023313. The next prime is 213113023469. The reversal of 213113023331 is 133320311312.

It is a cyclic number.

It is not a de Polignac number, because 213113023331 - 2¹⁴ = 213113006947 is a prime.

It is a super-2 number, since 2×213113023331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213113023297 and 213113023306.

It is not an unprimeable number, because it can be changed into a prime (213113023631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37631 + ... + 653943.

It is an arithmetic number, because the mean of its divisors is an integer number (14594931834).

Almost surely, 2^213113023331 is an apocalyptic number.

213113023331 is a deficient number, since it is larger than the sum of its proper divisors (20405886013).

213113023331 is a wasteful number, since it uses less digits than its factorization.

213113023331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616790.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 213113023331 its reverse (133320311312), we get a palindrome (346433334643).

The spelling of 213113023331 in words is "two hundred thirteen billion, one hundred thirteen million, twenty-three thousand, three hundred thirty-one".