31123023321002 has 12 divisors (see below), whose sum is σ = 49592222282310. Its totient is φ = 14646128621376.

The previous prime is 31123023320969. The next prime is 31123023321029. The reversal of 31123023321002 is 20012332032113.

It can be written as a sum of positive squares in 3 ways, for example, as 31023128765281 + 99894555721 = 5569841^2 + 316061^2 .

It is a super-2 number, since 2×31123023321002² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26923029977 + ... + 26923031132.

Almost surely, 2^{31123023321002} is an apocalyptic number.

31123023321002 is a deficient number, since it is larger than the sum of its proper divisors (18469198961308).

31123023321002 is a wasteful number, since it uses less digits than its factorization.

31123023321002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53846061145 (or 53846061128 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31123023321002 its reverse (20012332032113), we get a palindrome (51135355353115).

The spelling of 31123023321002 in words is "thirty-one trillion, one hundred twenty-three billion, twenty-three million, three hundred twenty-one thousand, two".