1031240143425 has 48 divisors (see below), whose sum is σ = 1780359228288. Its totient is φ = 525713548800.

The previous prime is 1031240143357. The next prime is 1031240143457. The reversal of 1031240143425 is 5243410421301.

It is not a de Polignac number, because 1031240143425 - 2⁸ = 1031240143169 is a prime.

It is a super-2 number, since 2×1031240143425² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1031240143392 and 1031240143401.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2263335 + ... + 2680515.

It is an arithmetic number, because the mean of its divisors is an integer number (37090817256).

Almost surely, 2^{1031240143425} is an apocalyptic number.

1031240143425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1031240143425 is a deficient number, since it is larger than the sum of its proper divisors (749119084863).

1031240143425 is a wasteful number, since it uses less digits than its factorization.

1031240143425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418650 (or 418645 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 1031240143425 its reverse (5243410421301), we get a palindrome (6274650564726).

The spelling of 1031240143425 in words is "one trillion, thirty-one billion, two hundred forty million, one hundred forty-three thousand, four hundred twenty-five".