1031120220999 has 48 divisors (see below), whose sum is σ = 1615909206240. Its totient is φ = 582337536000.

The previous prime is 1031120220983. The next prime is 1031120221013. The reversal of 1031120220999 is 9990220211301.

It is not a de Polignac number, because 1031120220999 - 2⁴ = 1031120220983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031120220929) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 203914 + ... + 1450455.

It is an arithmetic number, because the mean of its divisors is an integer number (33664775130).

Almost surely, 2^{1031120220999} is an apocalyptic number.

1031120220999 is a deficient number, since it is larger than the sum of its proper divisors (584788985241).

1031120220999 is a wasteful number, since it uses less digits than its factorization.

1031120220999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654512 (or 1654501 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 39.

The spelling of 1031120220999 in words is "one trillion, thirty-one billion, one hundred twenty million, two hundred twenty thousand, nine hundred ninety-nine".