1231363955 has 8 divisors (see below), whose sum is σ = 1481149104. Its totient is φ = 982749600.

The previous prime is 1231363943. The next prime is 1231363957. The reversal of 1231363955 is 5593631321.

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

It is not a de Polignac number, because 1231363955 - 2⁸ = 1231363699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231363957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290381 + ... + 294590.

It is an arithmetic number, because the mean of its divisors is an integer number (185143638).

Almost surely, 2^1231363955 is an apocalyptic number.

1231363955 is a deficient number, since it is larger than the sum of its proper divisors (249785149).

1231363955 is an equidigital number, since it uses as much as digits as its factorization.

1231363955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585397.

The product of its digits is 72900, while the sum is 38.

The square root of 1231363955 is about 35090.7958729921. The cubic root of 1231363955 is about 1071.8371661203.

The spelling of 1231363955 in words is "one billion, two hundred thirty-one million, three hundred sixty-three thousand, nine hundred fifty-five".