1231503052 has 24 divisors (see below), whose sum is σ = 2457435456. Its totient is φ = 534951168.

The previous prime is 1231502983. The next prime is 1231503059. The reversal of 1231503052 is 2503051321.

It is not an unprimeable number, because it can be changed into a prime (1231503059) 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, 695668 + ... + 697435.

It is an arithmetic number, because the mean of its divisors is an integer number (102393144).

Almost surely, 2^1231503052 is an apocalyptic number.

It is an amenable number.

1231503052 is a deficient number, since it is larger than the sum of its proper divisors (1225932404).

1231503052 is a wasteful number, since it uses less digits than its factorization.

1231503052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393137 (or 1393135 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 1231503052 is about 35092.7777754911. Note that the first 5 decimals coincide. The cubic root of 1231503052 is about 1071.8775234602.

Adding to 1231503052 its reverse (2503051321), we get a palindrome (3734554373).

The spelling of 1231503052 in words is "one billion, two hundred thirty-one million, five hundred three thousand, fifty-two".