31023120220051 has 2 divisors, whose sum is σ = 31023120220052. Its totient is φ = 31023120220050.

The previous prime is 31023120220033. The next prime is 31023120220151. The reversal of 31023120220051 is 15002202132013.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31023120220051 is a prime.

It is not a weakly prime, because it can be changed into another prime (31023120220031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15511560110025 + 15511560110026.

It is an arithmetic number, because the mean of its divisors is an integer number (15511560110026).

Almost surely, 2^{31023120220051} is an apocalyptic number.

31023120220051 is a deficient number, since it is larger than the sum of its proper divisors (1).

31023120220051 is an equidigital number, since it uses as much as digits as its factorization.

31023120220051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 31023120220051 its reverse (15002202132013), we get a palindrome (46025322352064).

The spelling of 31023120220051 in words is "thirty-one trillion, twenty-three billion, one hundred twenty million, two hundred twenty thousand, fifty-one".