1203331131312 has 20 divisors (see below), whose sum is σ = 3108605422680. Its totient is φ = 401110377088.

The previous prime is 1203331131229. The next prime is 1203331131319. The reversal of 1203331131312 is 2131311333021.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1203331131319) 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, 12534699237 + ... + 12534699332.

It is an arithmetic number, because the mean of its divisors is an integer number (155430271134).

Almost surely, 2^{1203331131312} is an apocalyptic number.

1203331131312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1203331131312 is an abundant number, since it is smaller than the sum of its proper divisors (1905274291368).

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

1203331131312 is a wasteful number, since it uses less digits than its factorization.

1203331131312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25069398580 (or 25069398574 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 1203331131312 its reverse (2131311333021), we get a palindrome (3334642464333).

The spelling of 1203331131312 in words is "one trillion, two hundred three billion, three hundred thirty-one million, one hundred thirty-one thousand, three hundred twelve".