1121020131023 has 32 divisors (see below), whose sum is σ = 1300206936000. Its totient is φ = 958785278976.

The previous prime is 1121020131019. The next prime is 1121020131053. The reversal of 1121020131023 is 3201310201211.

It is not a de Polignac number, because 1121020131023 - 2² = 1121020131019 is a prime.

It is a super-2 number, since 2×1121020131023² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121020130992 and 1121020131010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121020131053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 467828 + ... + 1568726.

It is an arithmetic number, because the mean of its divisors is an integer number (40631466750).

Almost surely, 2^{1121020131023} is an apocalyptic number.

1121020131023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1121020131023 is a deficient number, since it is larger than the sum of its proper divisors (179186804977).

1121020131023 is a wasteful number, since it uses less digits than its factorization.

1121020131023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101051.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1121020131023 its reverse (3201310201211), we get a palindrome (4322330332234).

The spelling of 1121020131023 in words is "one trillion, one hundred twenty-one billion, twenty million, one hundred thirty-one thousand, twenty-three".