1231935055 has 16 divisors (see below), whose sum is σ = 1593928224. Its totient is φ = 908657280.

The previous prime is 1231935049. The next prime is 1231935137. The reversal of 1231935055 is 5505391321.

It is not a de Polignac number, because 1231935055 - 2¹³ = 1231926863 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1231935055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46200 + ... + 67810.

It is an arithmetic number, because the mean of its divisors is an integer number (99620514).

Almost surely, 2^1231935055 is an apocalyptic number.

1231935055 is a deficient number, since it is larger than the sum of its proper divisors (361993169).

1231935055 is a wasteful number, since it uses less digits than its factorization.

1231935055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22506.

The product of its (nonzero) digits is 20250, while the sum is 34.

The square root of 1231935055 is about 35098.9323911711. The cubic root of 1231935055 is about 1072.0028446196.

It can be divided in two parts, 12319 and 35055, that added together give a palindrome (47374).

The spelling of 1231935055 in words is "one billion, two hundred thirty-one million, nine hundred thirty-five thousand, fifty-five".