1031023211231 has 16 divisors (see below), whose sum is σ = 1137594083808. Its totient is φ = 928354176000.

The previous prime is 1031023211221. The next prime is 1031023211237. The reversal of 1031023211231 is 1321123201301.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1031023211231 - 2¹⁰ = 1031023210207 is a prime.

It is a super-2 number, since 2×1031023211231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031023211237) 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, 3288455 + ... + 3588311.

It is an arithmetic number, because the mean of its divisors is an integer number (71099630238).

Almost surely, 2^{1031023211231} is an apocalyptic number.

1031023211231 is a deficient number, since it is larger than the sum of its proper divisors (106570872577).

1031023211231 is a wasteful number, since it uses less digits than its factorization.

1031023211231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306362.

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

Adding to 1031023211231 its reverse (1321123201301), we get a palindrome (2352146412532).

The spelling of 1031023211231 in words is "one trillion, thirty-one billion, twenty-three million, two hundred eleven thousand, two hundred thirty-one".