420120315212542 has 32 divisors (see below), whose sum is σ = 721732941895680. Its totient is φ = 179670123833760.

The previous prime is 420120315212501. The next prime is 420120315212573. The reversal of 420120315212542 is 245212513021024.

It is a junction number, because it is equal to n+sod(n) for n = 420120315212498 and 420120315212507.

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, 12071388 + ... + 31399984.

It is an arithmetic number, because the mean of its divisors is an integer number (22554154434240).

Almost surely, 2^{420120315212542} is an apocalyptic number.

420120315212542 is a deficient number, since it is larger than the sum of its proper divisors (301612626683138).

420120315212542 is a wasteful number, since it uses less digits than its factorization.

420120315212542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19331896.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 420120315212542 its reverse (245212513021024), we get a palindrome (665332828233566).

The spelling of 420120315212542 in words is "four hundred twenty trillion, one hundred twenty billion, three hundred fifteen million, two hundred twelve thousand, five hundred forty-two".