1031121132023 has 16 divisors (see below), whose sum is σ = 1058503541760. Its totient is φ = 1003847328000.

The previous prime is 1031121132017. The next prime is 1031121132049. The reversal of 1031121132023 is 3202311211301.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1031121132023 - 2⁴ = 1031121132007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031121131986 and 1031121132004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031121132053) 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, 39108161 + ... + 39134517.

It is an arithmetic number, because the mean of its divisors is an integer number (66156471360).

Almost surely, 2^{1031121132023} is an apocalyptic number.

1031121132023 is a deficient number, since it is larger than the sum of its proper divisors (27382409737).

1031121132023 is a wasteful number, since it uses less digits than its factorization.

1031121132023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28378.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1031121132023 its reverse (3202311211301), we get a palindrome (4233432343324).

The spelling of 1031121132023 in words is "one trillion, thirty-one billion, one hundred twenty-one million, one hundred thirty-two thousand, twenty-three".