31311301133011 has 2 divisors, whose sum is σ = 31311301133012. Its totient is φ = 31311301133010.

The previous prime is 31311301132963. The next prime is 31311301133029. The reversal of 31311301133011 is 11033110311313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31311301133011 - 2¹⁵ = 31311301100243 is a prime.

It is a super-2 number, since 2×31311301133011² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31311301133041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15655650566505 + 15655650566506.

It is an arithmetic number, because the mean of its divisors is an integer number (15655650566506).

Almost surely, 2^{31311301133011} is an apocalyptic number.

31311301133011 is a deficient number, since it is larger than the sum of its proper divisors (1).

31311301133011 is an equidigital number, since it uses as much as digits as its factorization.

31311301133011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243, while the sum is 22.

Adding to 31311301133011 its reverse (11033110311313), we get a palindrome (42344411444324).

The spelling of 31311301133011 in words is "thirty-one trillion, three hundred eleven billion, three hundred one million, one hundred thirty-three thousand, eleven".