31203022311123 has 16 divisors (see below), whose sum is σ = 45089717697696. Its totient is φ = 19079555040000.

The previous prime is 31203022311121. The next prime is 31203022311137. The reversal of 31203022311123 is 32111322030213.

It is not a de Polignac number, because 31203022311123 - 2¹ = 31203022311121 is a prime.

It is a super-2 number, since 2×31203022311123² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31203022311093 and 31203022311102.

It is not an unprimeable number, because it can be changed into a prime (31203022311121) 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, 2548011378 + ... + 2548023623.

It is an arithmetic number, because the mean of its divisors is an integer number (2818107356106).

Almost surely, 2^{31203022311123} is an apocalyptic number.

31203022311123 is a deficient number, since it is larger than the sum of its proper divisors (13886695386573).

31203022311123 is a wasteful number, since it uses less digits than its factorization.

31203022311123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5096035174.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31203022311123 its reverse (32111322030213), we get a palindrome (63314344341336).

The spelling of 31203022311123 in words is "thirty-one trillion, two hundred three billion, twenty-two million, three hundred eleven thousand, one hundred twenty-three".