1031021131121 has 16 divisors (see below), whose sum is σ = 1097897932800. Its totient is φ = 965462779008.

The previous prime is 1031021131103. The next prime is 1031021131181. The reversal of 1031021131121 is 1211311201301.

It is a cyclic number.

It is not a de Polignac number, because 1031021131121 - 2⁶ = 1031021131057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1031021131121.

It is not an unprimeable number, because it can be changed into a prime (1031021131181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145100 + ... + 1443293.

It is an arithmetic number, because the mean of its divisors is an integer number (68618620800).

Almost surely, 2^{1031021131121} is an apocalyptic number.

It is an amenable number.

1031021131121 is a deficient number, since it is larger than the sum of its proper divisors (66876801679).

1031021131121 is a wasteful number, since it uses less digits than its factorization.

1031021131121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588808.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 1031021131121 its reverse (1211311201301), we get a palindrome (2242332332422).

The spelling of 1031021131121 in words is "one trillion, thirty-one billion, twenty-one million, one hundred thirty-one thousand, one hundred twenty-one".