12401230403020 has 96 divisors (see below), whose sum is σ = 27575952800256. Its totient is φ = 4676995123200.

The previous prime is 12401230403017. The next prime is 12401230403033. The reversal of 12401230403020 is 2030403210421.

It is a junction number, because it is equal to n+sod(n) for n = 12401230402982 and 12401230403000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18300082 + ... + 18965638.

It is an arithmetic number, because the mean of its divisors is an integer number (287249508336).

Almost surely, 2^{12401230403020} is an apocalyptic number.

12401230403020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12401230403020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13787976400128).

12401230403020 is an abundant number, since it is smaller than the sum of its proper divisors (15174722397236).

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

12401230403020 is a wasteful number, since it uses less digits than its factorization.

12401230403020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666371 (or 666369 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12401230403020 its reverse (2030403210421), we get a palindrome (14431633613441).

The spelling of 12401230403020 in words is "twelve trillion, four hundred one billion, two hundred thirty million, four hundred three thousand, twenty".