40331001213 has 12 divisors (see below), whose sum is σ = 58910452380. Its totient is φ = 26585228736.

The previous prime is 40331001181. The next prime is 40331001259. The reversal of 40331001213 is 31210013304.

It can be written as a sum of positive squares in 2 ways, for example, as 22236177924 + 18094823289 = 149118^2 + 134517^2 .

It is not a de Polignac number, because 40331001213 - 2⁵ = 40331001181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40331001413) 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, 25174606 + ... + 25176207.

It is an arithmetic number, because the mean of its divisors is an integer number (4909204365).

Almost surely, 2^40331001213 is an apocalyptic number.

It is an amenable number.

40331001213 is a deficient number, since it is larger than the sum of its proper divisors (18579451167).

40331001213 is a wasteful number, since it uses less digits than its factorization.

40331001213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50350908 (or 50350905 counting only the distinct ones).

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

Adding to 40331001213 its reverse (31210013304), we get a palindrome (71541014517).

The spelling of 40331001213 in words is "forty billion, three hundred thirty-one million, one thousand, two hundred thirteen".