1201112031000 has 128 divisors (see below), whose sum is σ = 4282822402560. Its totient is φ = 274539888000.

The previous prime is 1201112030999. The next prime is 1201112031019. The reversal of 1201112031000 is 1302111021.

It is a super-2 number, since 2×1201112031000² (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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28576906 + ... + 28618905.

It is an arithmetic number, because the mean of its divisors is an integer number (33459550020).

Almost surely, 2^{1201112031000} is an apocalyptic number.

1201112031000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201112031000 is an abundant number, since it is smaller than the sum of its proper divisors (3081710371560).

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

1201112031000 is a wasteful number, since it uses less digits than its factorization.

1201112031000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57195842 (or 57195828 counting only the distinct ones).

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

Adding to 1201112031000 its reverse (1302111021), we get a palindrome (1202414142021).

The spelling of 1201112031000 in words is "one trillion, two hundred one billion, one hundred twelve million, thirty-one thousand".