1020125432431 has 16 divisors (see below), whose sum is σ = 1167132631104. Its totient is φ = 873437370624.

The previous prime is 1020125432413. The next prime is 1020125432437. The reversal of 1020125432431 is 1342345210201.

It is not a de Polignac number, because 1020125432431 - 2⁵ = 1020125432399 is a prime.

It is a super-2 number, since 2×1020125432431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020125432431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020125432437) 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, 38376261 + ... + 38402833.

It is an arithmetic number, because the mean of its divisors is an integer number (72945789444).

Almost surely, 2^{1020125432431} is an apocalyptic number.

1020125432431 is a deficient number, since it is larger than the sum of its proper divisors (147007198673).

1020125432431 is a wasteful number, since it uses less digits than its factorization.

1020125432431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32370.

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 1020125432431 in words is "one trillion, twenty billion, one hundred twenty-five million, four hundred thirty-two thousand, four hundred thirty-one".