1031011200000 has 528 divisors, whose sum is σ = 3816771023520. Its totient is φ = 274913280000.

The previous prime is 1031011199951. The next prime is 1031011200019. The reversal of 1031011200000 is 21101301.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 86394034 + ... + 86405966.

Almost surely, 2^{1031011200000} is an apocalyptic number.

1031011200000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1031011200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1908385511760).

1031011200000 is an abundant number, since it is smaller than the sum of its proper divisors (2785759823520).

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

1031011200000 is an frugal number, since it uses more digits than its factorization.

1031011200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11987 (or 11943 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 1031011200000 its reverse (21101301), we get a palindrome (1031032301301).

The spelling of 1031011200000 in words is "one trillion, thirty-one billion, eleven million, two hundred thousand".