2042345101 has 4 divisors (see below), whose sum is σ = 2050819804. Its totient is φ = 2033870400.

The previous prime is 2042345077. The next prime is 2042345111. The reversal of 2042345101 is 1015432402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1015432402 = 2 ⋅507716201.

It can be written as a sum of positive squares in 2 ways, for example, as 1776622500 + 265722601 = 42150^2 + 16301^2 .

It is a cyclic number.

It is not a de Polignac number, because 2042345101 - 2¹³ = 2042336909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042345111) 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, 4236990 + ... + 4237471.

It is an arithmetic number, because the mean of its divisors is an integer number (512704951).

Almost surely, 2^2042345101 is an apocalyptic number.

It is an amenable number.

2042345101 is a deficient number, since it is larger than the sum of its proper divisors (8474703).

2042345101 is an equidigital number, since it uses as much as digits as its factorization.

2042345101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8474702.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2042345101 is about 45192.3124104089. The cubic root of 2042345101 is about 1268.7509369759.

Adding to 2042345101 its reverse (1015432402), we get a palindrome (3057777503).

The spelling of 2042345101 in words is "two billion, forty-two million, three hundred forty-five thousand, one hundred one".