1015231143031 has 12 divisors (see below), whose sum is σ = 1200999833640. Its totient is φ = 855448999440.

The previous prime is 1015231143023. The next prime is 1015231143071. The reversal of 1015231143031 is 1303411325101.

It is not a de Polignac number, because 1015231143031 - 2³ = 1015231143023 is a prime.

It is a super-2 number, since 2×1015231143031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1015231142987 and 1015231143005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1015231143071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175581880 + ... + 175587661.

It is an arithmetic number, because the mean of its divisors is an integer number (100083319470).

Almost surely, 2^{1015231143031} is an apocalyptic number.

1015231143031 is a deficient number, since it is larger than the sum of its proper divisors (185768690609).

1015231143031 is an equidigital number, since it uses as much as digits as its factorization.

1015231143031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351169614 (or 351169607 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 1015231143031 its reverse (1303411325101), we get a palindrome (2318642468132).

The spelling of 1015231143031 in words is "one trillion, fifteen billion, two hundred thirty-one million, one hundred forty-three thousand, thirty-one".