1531020234025 has 6 divisors (see below), whose sum is σ = 1898465090222. Its totient is φ = 1224816187200.

The previous prime is 1531020234019. The next prime is 1531020234047. The reversal of 1531020234025 is 5204320201351.

It can be written as a sum of positive squares in 3 ways, for example, as 453769293376 + 1077250940649 = 673624^2 + 1037907^2 .

It is not a de Polignac number, because 1531020234025 - 2³⁹ = 981264420137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1531020233984 and 1531020234002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30620404656 + ... + 30620404705.

Almost surely, 2^{1531020234025} is an apocalyptic number.

It is an amenable number.

1531020234025 is a deficient number, since it is larger than the sum of its proper divisors (367444856197).

1531020234025 is an equidigital number, since it uses as much as digits as its factorization.

1531020234025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61240809371 (or 61240809366 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 1531020234025 its reverse (5204320201351), we get a palindrome (6735340435376).

The spelling of 1531020234025 in words is "one trillion, five hundred thirty-one billion, twenty million, two hundred thirty-four thousand, twenty-five".