31274042263 has 8 divisors (see below), whose sum is σ = 32289374336. Its totient is φ = 30259116000.

The previous prime is 31274042251. The next prime is 31274042291. The reversal of 31274042263 is 36224047213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31274042263 - 2⁹ = 31274041751 is a prime.

It is a super-2 number, since 2×31274042263² (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 (31274042243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59245 + ... + 257017.

It is an arithmetic number, because the mean of its divisors is an integer number (4036171792).

Almost surely, 2^31274042263 is an apocalyptic number.

31274042263 is a deficient number, since it is larger than the sum of its proper divisors (1015332073).

31274042263 is a wasteful number, since it uses less digits than its factorization.

31274042263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202905.

The product of its (nonzero) digits is 48384, while the sum is 34.

Adding to 31274042263 its reverse (36224047213), we get a palindrome (67498089476).

The spelling of 31274042263 in words is "thirty-one billion, two hundred seventy-four million, forty-two thousand, two hundred sixty-three".