2420135123021 has 16 divisors (see below), whose sum is σ = 3017396043648. Its totient is φ = 1885766625600.

The previous prime is 2420135122981. The next prime is 2420135123051. The reversal of 2420135123021 is 1203215310242.

It is not a de Polignac number, because 2420135123021 - 2¹⁰ = 2420135121997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420135123051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2440271 + ... + 3285603.

It is an arithmetic number, because the mean of its divisors is an integer number (188587252728).

Almost surely, 2^{2420135123021} is an apocalyptic number.

It is an amenable number.

2420135123021 is a deficient number, since it is larger than the sum of its proper divisors (597260920627).

2420135123021 is a wasteful number, since it uses less digits than its factorization.

2420135123021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882532.

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 2420135123021 in words is "two trillion, four hundred twenty billion, one hundred thirty-five million, one hundred twenty-three thousand, twenty-one".