1231053051 has 8 divisors (see below), whose sum is σ = 1642261824. Its totient is φ = 820273160.

The previous prime is 1231053041. The next prime is 1231053071. The reversal of 1231053051 is 1503501321.

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 1231053051 - 2⁷ = 1231052923 is a prime.

It is a super-2 number, since 2×1231053051² = 3030983228752817202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1231053041) 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, 100461 + ... + 112046.

It is an arithmetic number, because the mean of its divisors is an integer number (205282728).

Almost surely, 2^1231053051 is an apocalyptic number.

1231053051 is a deficient number, since it is larger than the sum of its proper divisors (411208773).

1231053051 is a wasteful number, since it uses less digits than its factorization.

1231053051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214441.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1231053051 is about 35086.3655997597. The cubic root of 1231053051 is about 1071.7469500335.

Adding to 1231053051 its reverse (1503501321), we get a palindrome (2734554372).

The spelling of 1231053051 in words is "one billion, two hundred thirty-one million, fifty-three thousand, fifty-one".