1011200331000 has 64 divisors (see below), whose sum is σ = 3154945042080. Its totient is φ = 269653420800.

The previous prime is 1011200330939. The next prime is 1011200331073. The reversal of 1011200331000 is 1330021101.

It is a super-2 number, since 2×1011200331000² (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 15 ways as a sum of consecutive naturals, for example, 168530389 + ... + 168536388.

Almost surely, 2^{1011200331000} is an apocalyptic number.

1011200331000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011200331000 is an abundant number, since it is smaller than the sum of its proper divisors (2143744711080).

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

1011200331000 is a wasteful number, since it uses less digits than its factorization.

1011200331000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337066801 (or 337066787 counting only the distinct ones).

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

Adding to 1011200331000 its reverse (1330021101), we get a palindrome (1012530352101).

The spelling of 1011200331000 in words is "one trillion, eleven billion, two hundred million, three hundred thirty-one thousand".