420142051502 has 16 divisors (see below), whose sum is σ = 633128348160. Its totient is φ = 209099534712.

The previous prime is 420142051501. The next prime is 420142051513. The reversal of 420142051502 is 205150241024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420142051501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3292649 + ... + 3417867.

It is an arithmetic number, because the mean of its divisors is an integer number (39570521760).

Almost surely, 2^420142051502 is an apocalyptic number.

420142051502 is a deficient number, since it is larger than the sum of its proper divisors (212986296658).

420142051502 is a wasteful number, since it uses less digits than its factorization.

420142051502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132967.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 420142051502 its reverse (205150241024), we get a palindrome (625292292526).

The spelling of 420142051502 in words is "four hundred twenty billion, one hundred forty-two million, fifty-one thousand, five hundred two".