425015121000 has 128 divisors (see below), whose sum is σ = 1347786236160. Its totient is φ = 111479328000.

The previous prime is 425015120977. The next prime is 425015121001. The reversal of 425015121000 is 121510524.

It is not an unprimeable number, because it can be changed into a prime (425015121001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 978244 + ... + 1344243.

It is an arithmetic number, because the mean of its divisors is an integer number (10529579970).

Almost surely, 2^425015121000 is an apocalyptic number.

425015121000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

425015121000 is an abundant number, since it is smaller than the sum of its proper divisors (922771115160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425015121000 is a wasteful number, since it uses less digits than its factorization.

425015121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322572 (or 2322558 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 425015121000 its reverse (121510524), we get a palindrome (425136631524).

The spelling of 425015121000 in words is "four hundred twenty-five billion, fifteen million, one hundred twenty-one thousand".