120311012331031 has 2 divisors, whose sum is σ = 120311012331032. Its totient is φ = 120311012331030.

The previous prime is 120311012331019. The next prime is 120311012331113. The reversal of 120311012331031 is 130133210113021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120311012331031 - 2³¹ = 120308864847383 is a prime.

It is a super-2 number, since 2×120311012331031² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120311012330993 and 120311012331011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120311012332031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60155506165515 + 60155506165516.

It is an arithmetic number, because the mean of its divisors is an integer number (60155506165516).

Almost surely, 2^{120311012331031} is an apocalyptic number.

120311012331031 is a deficient number, since it is larger than the sum of its proper divisors (1).

120311012331031 is an equidigital number, since it uses as much as digits as its factorization.

120311012331031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 120311012331031 its reverse (130133210113021), we get a palindrome (250444222444052).

The spelling of 120311012331031 in words is "one hundred twenty trillion, three hundred eleven billion, twelve million, three hundred thirty-one thousand, thirty-one".