1020236525542 has 24 divisors (see below), whose sum is σ = 1657199212200. Its totient is φ = 470858656320.

The previous prime is 1020236525531. The next prime is 1020236525557. The reversal of 1020236525542 is 2455256320201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10731834 + ... + 10826482.

It is an arithmetic number, because the mean of its divisors is an integer number (69049967175).

Almost surely, 2^{1020236525542} is an apocalyptic number.

1020236525542 is a deficient number, since it is larger than the sum of its proper divisors (636962686658).

1020236525542 is a wasteful number, since it uses less digits than its factorization.

1020236525542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126568 (or 126555 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 1020236525542 in words is "one trillion, twenty billion, two hundred thirty-six million, five hundred twenty-five thousand, five hundred forty-two".