1231350612 has 12 divisors (see below), whose sum is σ = 2873151456. Its totient is φ = 410450200.

The previous prime is 1231350611. The next prime is 1231350629. The reversal of 1231350612 is 2160531321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231350611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51306264 + ... + 51306287.

It is an arithmetic number, because the mean of its divisors is an integer number (239429288).

Almost surely, 2^1231350612 is an apocalyptic number.

1231350612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1231350612 is an abundant number, since it is smaller than the sum of its proper divisors (1641800844).

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

1231350612 is a wasteful number, since it uses less digits than its factorization.

1231350612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102612558 (or 102612556 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1231350612 is about 35090.6057513973. The cubic root of 1231350612 is about 1071.8332946479.

Adding to 1231350612 its reverse (2160531321), we get a palindrome (3391881933).

The spelling of 1231350612 in words is "one billion, two hundred thirty-one million, three hundred fifty thousand, six hundred twelve".