1270117631 has 4 divisors (see below), whose sum is σ = 1272398472. Its totient is φ = 1267836792.

The previous prime is 1270117621. The next prime is 1270117687. The reversal of 1270117631 is 1367110721.

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 1270117631 - 2¹⁴ = 1270101247 is a prime.

It is a super-2 number, since 2×1270117631² = 3226397593154104322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1270117594 and 1270117603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1270117621) 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, 1139585 + ... + 1140698.

It is an arithmetic number, because the mean of its divisors is an integer number (318099618).

Almost surely, 2^1270117631 is an apocalyptic number.

1270117631 is a deficient number, since it is larger than the sum of its proper divisors (2280841).

1270117631 is an equidigital number, since it uses as much as digits as its factorization.

1270117631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280840.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 1270117631 is about 35638.7097269247. The cubic root of 1270117631 is about 1082.9655665477.

The spelling of 1270117631 in words is "one billion, two hundred seventy million, one hundred seventeen thousand, six hundred thirty-one".