1200231001312 has 48 divisors (see below), whose sum is σ = 2702410270560. Its totient is φ = 514024616448.

The previous prime is 1200231001309. The next prime is 1200231001313. The reversal of 1200231001312 is 2131001320021.

It is a super-2 number, since 2×1200231001312² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200231001313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1554703 + ... + 2194894.

It is an arithmetic number, because the mean of its divisors is an integer number (56300213970).

Almost surely, 2^{1200231001312} is an apocalyptic number.

It is an amenable number.

1200231001312 is an abundant number, since it is smaller than the sum of its proper divisors (1502179269248).

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

1200231001312 is a wasteful number, since it uses less digits than its factorization.

1200231001312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3751043 (or 3751035 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1200231001312 its reverse (2131001320021), we get a palindrome (3331232321333).

The spelling of 1200231001312 in words is "one trillion, two hundred billion, two hundred thirty-one million, one thousand, three hundred twelve".