30970140253 has 6 divisors (see below), whose sum is σ = 33353142074. Its totient is φ = 28587236064.

The previous prime is 30970140199. The next prime is 30970140287. The reversal of 30970140253 is 35204107903.

It can be written as a sum of positive squares in 3 ways, for example, as 58171129 + 30911969124 = 7627^2 + 175818^2 .

It is a de Polignac number, because none of the positive numbers 2^k-30970140253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30970110253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 610113 + ... + 658921.

Almost surely, 2^30970140253 is an apocalyptic number.

It is an amenable number.

30970140253 is a deficient number, since it is larger than the sum of its proper divisors (2383001821).

30970140253 is an frugal number, since it uses more digits than its factorization.

30970140253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97631 (or 48822 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The spelling of 30970140253 in words is "thirty billion, nine hundred seventy million, one hundred forty thousand, two hundred fifty-three".