125423211455 has 16 divisors (see below), whose sum is σ = 152689079808. Its totient is φ = 98885556000.

The previous prime is 125423211413. The next prime is 125423211469. The reversal of 125423211455 is 554112324521.

It is not a de Polignac number, because 125423211455 - 2⁶ = 125423211391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 828710 + ... + 968300.

It is an arithmetic number, because the mean of its divisors is an integer number (9543067488).

Almost surely, 2^125423211455 is an apocalyptic number.

125423211455 is a deficient number, since it is larger than the sum of its proper divisors (27265868353).

125423211455 is a wasteful number, since it uses less digits than its factorization.

125423211455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142198.

The product of its digits is 48000, while the sum is 35.

Adding to 125423211455 its reverse (554112324521), we get a palindrome (679535535976).

The spelling of 125423211455 in words is "one hundred twenty-five billion, four hundred twenty-three million, two hundred eleven thousand, four hundred fifty-five".