2420100003121 has 4 divisors (see below), whose sum is σ = 2562458826852. Its totient is φ = 2277741179392.

The previous prime is 2420100003073. The next prime is 2420100003137. The reversal of 2420100003121 is 1213000010242.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2117257806400 + 302842196721 = 1455080^2 + 550311^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2420100003121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2420100003095 and 2420100003104.

It is not an unprimeable number, because it can be changed into a prime (2420100003721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71179411840 + ... + 71179411873.

It is an arithmetic number, because the mean of its divisors is an integer number (640614706713).

Almost surely, 2^{2420100003121} is an apocalyptic number.

It is an amenable number.

2420100003121 is a deficient number, since it is larger than the sum of its proper divisors (142358823731).

2420100003121 is a wasteful number, since it uses less digits than its factorization.

2420100003121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142358823730.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2420100003121 its reverse (1213000010242), we get a palindrome (3633100013363).

The spelling of 2420100003121 in words is "two trillion, four hundred twenty billion, one hundred million, three thousand, one hundred twenty-one".