31003214211 has 20 divisors (see below), whose sum is σ = 49037765832. Its totient is φ = 19452996288.

The previous prime is 31003214201. The next prime is 31003214227. The reversal of 31003214211 is 11241230013.

It is not a de Polignac number, because 31003214211 - 2¹⁹ = 31002689923 is a prime.

It is a super-2 number, since 2×31003214211² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31003214201) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11256145 + ... + 11258898.

Almost surely, 2^31003214211 is an apocalyptic number.

31003214211 is a deficient number, since it is larger than the sum of its proper divisors (18034551621).

31003214211 is a wasteful number, since it uses less digits than its factorization.

31003214211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22515072 (or 22515063 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 31003214211 its reverse (11241230013), we get a palindrome (42244444224).

The spelling of 31003214211 in words is "thirty-one billion, three million, two hundred fourteen thousand, two hundred eleven".