31948387303 has 4 divisors (see below), whose sum is σ = 36512442640. Its totient is φ = 27384331968.

The previous prime is 31948387301. The next prime is 31948387357. The reversal of 31948387303 is 30378384913.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30378384913 = 1901 ⋅15980213.

It is not a de Polignac number, because 31948387303 - 2¹ = 31948387301 is a prime.

It is a super-2 number, since 2×31948387303² (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 (31948387301) 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, 2282027658 + ... + 2282027671.

It is an arithmetic number, because the mean of its divisors is an integer number (9128110660).

Almost surely, 2^31948387303 is an apocalyptic number.

31948387303 is a deficient number, since it is larger than the sum of its proper divisors (4564055337).

31948387303 is an equidigital number, since it uses as much as digits as its factorization.

31948387303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4564055336.

The product of its (nonzero) digits is 1306368, while the sum is 49.

The spelling of 31948387303 in words is "thirty-one billion, nine hundred forty-eight million, three hundred eighty-seven thousand, three hundred three".