1201003131000 has 128 divisors (see below), whose sum is σ = 3967549335360. Its totient is φ = 301428224000.

The previous prime is 1201003130993. The next prime is 1201003131011. The reversal of 1201003131000 is 1313001021.

It is a super-2 number, since 2×1201003131000² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11723541 + ... + 11825540.

Almost surely, 2^{1201003131000} is an apocalyptic number.

1201003131000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201003131000 is an abundant number, since it is smaller than the sum of its proper divisors (2766546204360).

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

1201003131000 is a wasteful number, since it uses less digits than its factorization.

1201003131000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23549122 (or 23549108 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 1201003131000 its reverse (1313001021), we get a palindrome (1202316132021).

The spelling of 1201003131000 in words is "one trillion, two hundred one billion, three million, one hundred thirty-one thousand".