1231052415 has 32 divisors (see below), whose sum is σ = 1988977152. Its totient is φ = 650160000.

The previous prime is 1231052411. The next prime is 1231052477. The reversal of 1231052415 is 5142501321.

It is a happy number.

It is not a de Polignac number, because 1231052415 - 2² = 1231052411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231052411) 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 31 ways as a sum of consecutive naturals, for example, 952920 + ... + 954210.

It is an arithmetic number, because the mean of its divisors is an integer number (62155536).

Almost surely, 2^1231052415 is an apocalyptic number.

1231052415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1231052415 is a deficient number, since it is larger than the sum of its proper divisors (757924737).

1231052415 is a wasteful number, since it uses less digits than its factorization.

1231052415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1231052415 is about 35086.3565364088. The cubic root of 1231052415 is about 1071.7467654676.

Adding to 1231052415 its reverse (5142501321), we get a palindrome (6373553736).

The spelling of 1231052415 in words is "one billion, two hundred thirty-one million, fifty-two thousand, four hundred fifteen".