1231504052 has 12 divisors (see below), whose sum is σ = 2155584480. Its totient is φ = 615622776.

The previous prime is 1231504031. The next prime is 1231504073. The reversal of 1231504052 is 2504051321.

It is an interprime number because it is at equal distance from previous prime (1231504031) and next prime (1231504073).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9008 + ... + 50439.

It is an arithmetic number, because the mean of its divisors is an integer number (179632040).

Almost surely, 2^1231504052 is an apocalyptic number.

It is an amenable number.

1231504052 is a deficient number, since it is larger than the sum of its proper divisors (924080428).

1231504052 is a wasteful number, since it uses less digits than its factorization.

1231504052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64630 (or 64628 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1231504052 is about 35092.7920234341. The cubic root of 1231504052 is about 1071.8778135873.

Adding to 1231504052 its reverse (2504051321), we get a palindrome (3735555373).

The spelling of 1231504052 in words is "one billion, two hundred thirty-one million, five hundred four thousand, fifty-two".