31033231030189 has 2 divisors, whose sum is σ = 31033231030190. Its totient is φ = 31033231030188.

The previous prime is 31033231030171. The next prime is 31033231030237. The reversal of 31033231030189 is 98103013233013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29295426875625 + 1737804154564 = 5412525^2 + 1318258^2 .

It is a cyclic number.

It is not a de Polignac number, because 31033231030189 - 2³⁷ = 30895792076717 is a prime.

It is a super-2 number, since 2×31033231030189² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31033231030889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15516615515094 + 15516615515095.

It is an arithmetic number, because the mean of its divisors is an integer number (15516615515095).

Almost surely, 2^{31033231030189} is an apocalyptic number.

It is an amenable number.

31033231030189 is a deficient number, since it is larger than the sum of its proper divisors (1).

31033231030189 is an equidigital number, since it uses as much as digits as its factorization.

31033231030189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 31033231030189 in words is "thirty-one trillion, thirty-three billion, two hundred thirty-one million, thirty thousand, one hundred eighty-nine".