1020311422525 has 6 divisors (see below), whose sum is σ = 1265186163962. Its totient is φ = 816249138000.

The previous prime is 1020311422489. The next prime is 1020311422547. The reversal of 1020311422525 is 5252241130201.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 318479716 + 1019992942809 = 17846^2 + 1009947^2 .

It is not a de Polignac number, because 1020311422525 - 2¹⁹ = 1020310898237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020311422493 and 1020311422502.

It is a congruent number.

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, 20406228426 + ... + 20406228475.

Almost surely, 2^{1020311422525} is an apocalyptic number.

It is an amenable number.

1020311422525 is a deficient number, since it is larger than the sum of its proper divisors (244874741437).

1020311422525 is an equidigital number, since it uses as much as digits as its factorization.

1020311422525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40812456911 (or 40812456906 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 1020311422525 its reverse (5252241130201), we get a palindrome (6272552552726).

The spelling of 1020311422525 in words is "one trillion, twenty billion, three hundred eleven million, four hundred twenty-two thousand, five hundred twenty-five".