31325003147 has 4 divisors (see below), whose sum is σ = 32089027656. Its totient is φ = 30560978640.

The previous prime is 31325003137. The next prime is 31325003189. The reversal of 31325003147 is 74130052313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31325003147 - 2³⁰ = 30251261323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31325003137) 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, 382012193 + ... + 382012274.

It is an arithmetic number, because the mean of its divisors is an integer number (8022256914).

Almost surely, 2^31325003147 is an apocalyptic number.

31325003147 is a deficient number, since it is larger than the sum of its proper divisors (764024509).

31325003147 is an equidigital number, since it uses as much as digits as its factorization.

31325003147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764024508.

The product of its (nonzero) digits is 7560, while the sum is 29.

The spelling of 31325003147 in words is "thirty-one billion, three hundred twenty-five million, three thousand, one hundred forty-seven".