1231752012 has 48 divisors (see below), whose sum is σ = 2999801952. Its totient is φ = 393003520.

The previous prime is 1231751977. The next prime is 1231752023. The reversal of 1231752012 is 2102571321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2458 + ... + 49694.

It is an arithmetic number, because the mean of its divisors is an integer number (62495874).

Almost surely, 2^1231752012 is an apocalyptic number.

1231752012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1231752012 is an abundant number, since it is smaller than the sum of its proper divisors (1768049940).

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

1231752012 is a wasteful number, since it uses less digits than its factorization.

1231752012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47338 (or 47336 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 1231752012 is about 35096.3247648525. The cubic root of 1231752012 is about 1071.9497486562.

The spelling of 1231752012 in words is "one billion, two hundred thirty-one million, seven hundred fifty-two thousand, twelve".