402142202120 has 32 divisors (see below), whose sum is σ = 907182443520. Its totient is φ = 160436882880.

The previous prime is 402142202089. The next prime is 402142202153. The reversal of 402142202120 is 21202241204.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 402142202092 and 402142202101.

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, 13109426 + ... + 13140065.

It is an arithmetic number, because the mean of its divisors is an integer number (28349451360).

Almost surely, 2^402142202120 is an apocalyptic number.

402142202120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402142202120 is an abundant number, since it is smaller than the sum of its proper divisors (505040241400).

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

402142202120 is a wasteful number, since it uses less digits than its factorization.

402142202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26249885 (or 26249881 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 402142202120 its reverse (21202241204), we get a palindrome (423344443324).

The spelling of 402142202120 in words is "four hundred two billion, one hundred forty-two million, two hundred two thousand, one hundred twenty".