2031313073 has 2 divisors, whose sum is σ = 2031313074. Its totient is φ = 2031313072.

The previous prime is 2031313049. The next prime is 2031313121. The reversal of 2031313073 is 3703131302.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1977847729 + 53465344 = 44473^2 + 7312^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031313073 - 2⁸ = 2031312817 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2031313373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015656536 + 1015656537.

It is an arithmetic number, because the mean of its divisors is an integer number (1015656537).

Almost surely, 2^2031313073 is an apocalyptic number.

It is an amenable number.

2031313073 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031313073 is an equidigital number, since it uses as much as digits as its factorization.

2031313073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 23.

The square root of 2031313073 is about 45070.0906699776. The cubic root of 2031313073 is about 1266.4623629479.

Adding to 2031313073 its reverse (3703131302), we get a palindrome (5734444375).

The spelling of 2031313073 in words is "two billion, thirty-one million, three hundred thirteen thousand, seventy-three".