1031130221000 has 64 divisors (see below), whose sum is σ = 2632194264960. Its totient is φ = 374956440000.

The previous prime is 1031130220973. The next prime is 1031130221029. The reversal of 1031130221000 is 1220311301.

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, 46858556 + ... + 46880555.

It is an arithmetic number, because the mean of its divisors is an integer number (41128035390).

Almost surely, 2^{1031130221000} is an apocalyptic number.

1031130221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031130221000 is an abundant number, since it is smaller than the sum of its proper divisors (1601064043960).

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

1031130221000 is a wasteful number, since it uses less digits than its factorization.

1031130221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93739143 (or 93739129 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 1031130221000 its reverse (1220311301), we get a palindrome (1032350532301).

It can be divided in two parts, 1031 and 130221000, that added together give a palindrome (130222031).

The spelling of 1031130221000 in words is "one trillion, thirty-one billion, one hundred thirty million, two hundred twenty-one thousand".