20127122435254 has 16 divisors (see below), whose sum is σ = 30468194024400. Its totient is φ = 9971060982624.

The previous prime is 20127122435219. The next prime is 20127122435263. The reversal of 20127122435254 is 45253422172102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12197229 + ... + 13748695.

It is an arithmetic number, because the mean of its divisors is an integer number (1904262126525).

Almost surely, 2^{20127122435254} is an apocalyptic number.

20127122435254 is a deficient number, since it is larger than the sum of its proper divisors (10341071589146).

20127122435254 is a wasteful number, since it uses less digits than its factorization.

20127122435254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611087.

The product of its (nonzero) digits is 268800, while the sum is 40.

The spelling of 20127122435254 in words is "twenty trillion, one hundred twenty-seven billion, one hundred twenty-two million, four hundred thirty-five thousand, two hundred fifty-four".