31303213002011 has 16 divisors (see below), whose sum is σ = 33784940851200. Its totient is φ = 28918718859360.

The previous prime is 31303213001989. The next prime is 31303213002067. The reversal of 31303213002011 is 11020031230313.

It is a cyclic number.

It is not a de Polignac number, because 31303213002011 - 2¹⁸ = 31303212739867 is a prime.

It is a super-2 number, since 2×31303213002011² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31303213002811) 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, 43283036 + ... + 44000313.

It is an arithmetic number, because the mean of its divisors is an integer number (2111558803200).

Almost surely, 2^{31303213002011} is an apocalyptic number.

31303213002011 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

31303213002011 is a deficient number, since it is larger than the sum of its proper divisors (2481727849189).

31303213002011 is a wasteful number, since it uses less digits than its factorization.

31303213002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87283906.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31303213002011 its reverse (11020031230313), we get a palindrome (42323244232324).

The spelling of 31303213002011 in words is "thirty-one trillion, three hundred three billion, two hundred thirteen million, two thousand, eleven".