31053451031 has 4 divisors (see below), whose sum is σ = 31055448792. Its totient is φ = 31051453272.

The previous prime is 31053451019. The next prime is 31053451049. The reversal of 31053451031 is 13015435013.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13015435013 = 7 ⋅1859347859.

It is a cyclic number.

It is not a de Polignac number, because 31053451031 - 2³⁴ = 13873581847 is a prime.

It is a super-2 number, since 2×31053451031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31053451631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 975380 + ... + 1006713.

It is an arithmetic number, because the mean of its divisors is an integer number (7763862198).

Almost surely, 2^31053451031 is an apocalyptic number.

31053451031 is a deficient number, since it is larger than the sum of its proper divisors (1997761).

31053451031 is a wasteful number, since it uses less digits than its factorization.

31053451031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997760.

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 31053451031 its reverse (13015435013), we get a palindrome (44068886044).

The spelling of 31053451031 in words is "thirty-one billion, fifty-three million, four hundred fifty-one thousand, thirty-one".