1231315150 has 48 divisors (see below), whose sum is σ = 2472498000. Its totient is φ = 453519360.

The previous prime is 1231315109. The next prime is 1231315153. The reversal of 1231315150 is 515131321.

It is a super-2 number, since 2×1231315150² = 3032273997239045000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231315153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 289741 + ... + 293959.

It is an arithmetic number, because the mean of its divisors is an integer number (51510375).

Almost surely, 2^1231315150 is an apocalyptic number.

1231315150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231315150 is an abundant number, since it is smaller than the sum of its proper divisors (1241182850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231315150 is a wasteful number, since it uses less digits than its factorization.

1231315150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4693 (or 4688 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 1231315150 is about 35090.1004558266. The cubic root of 1231315150 is about 1071.8230052099.

Adding to 1231315150 its reverse (515131321), we get a palindrome (1746446471).

The spelling of 1231315150 in words is "one billion, two hundred thirty-one million, three hundred fifteen thousand, one hundred fifty".