1020125200551 has 16 divisors (see below), whose sum is σ = 1431909479040. Its totient is φ = 644219935200.

The previous prime is 1020125200531. The next prime is 1020125200607. The reversal of 1020125200551 is 1550025210201.

It is a de Polignac number, because none of the positive numbers 2^k-1020125200551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020125200531) 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, 433225 + ... + 1492626.

It is an arithmetic number, because the mean of its divisors is an integer number (89494342440).

Almost surely, 2^{1020125200551} is an apocalyptic number.

1020125200551 is a deficient number, since it is larger than the sum of its proper divisors (411784278489).

1020125200551 is a wasteful number, since it uses less digits than its factorization.

1020125200551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935166.

The product of its (nonzero) digits is 1000, while the sum is 24.

The spelling of 1020125200551 in words is "one trillion, twenty billion, one hundred twenty-five million, two hundred thousand, five hundred fifty-one".