2642341026121 has 4 divisors (see below), whose sum is σ = 2681778951952. Its totient is φ = 2602903100292.

The previous prime is 2642341026107. The next prime is 2642341026167. The reversal of 2642341026121 is 1216201432462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2642341026121 - 2⁹ = 2642341025609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2642341026181) 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, 19718962815 + ... + 19718962948.

It is an arithmetic number, because the mean of its divisors is an integer number (670444737988).

Almost surely, 2^{2642341026121} is an apocalyptic number.

It is an amenable number.

2642341026121 is a deficient number, since it is larger than the sum of its proper divisors (39437925831).

2642341026121 is an equidigital number, since it uses as much as digits as its factorization.

2642341026121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39437925830.

The product of its (nonzero) digits is 27648, while the sum is 34.

Adding to 2642341026121 its reverse (1216201432462), we get a palindrome (3858542458583).

The spelling of 2642341026121 in words is "two trillion, six hundred forty-two billion, three hundred forty-one million, twenty-six thousand, one hundred twenty-one".