311200030133131 has 2 divisors, whose sum is σ = 311200030133132. Its totient is φ = 311200030133130.

The previous prime is 311200030133129. The next prime is 311200030133137. The reversal of 311200030133131 is 131331030002113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 311200030133131 - 2¹ = 311200030133129 is a prime.

It is a super-2 number, since 2×311200030133131² (a number of 30 digits) contains 22 as substring.

Together with 311200030133129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (311200030133137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155600015066565 + 155600015066566.

It is an arithmetic number, because the mean of its divisors is an integer number (155600015066566).

Almost surely, 2^{311200030133131} is an apocalyptic number.

311200030133131 is a deficient number, since it is larger than the sum of its proper divisors (1).

311200030133131 is an equidigital number, since it uses as much as digits as its factorization.

311200030133131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 311200030133131 its reverse (131331030002113), we get a palindrome (442531060135244).

The spelling of 311200030133131 in words is "three hundred eleven trillion, two hundred billion, thirty million, one hundred thirty-three thousand, one hundred thirty-one".