202460142121 has 4 divisors (see below), whose sum is σ = 207932037892. Its totient is φ = 196988246352.

The previous prime is 202460142113. The next prime is 202460142133. The reversal of 202460142121 is 121241064202.

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 119585247721 + 82874894400 = 345811^2 + 287880^2 .

It is a cyclic number.

It is not a de Polignac number, because 202460142121 - 2³ = 202460142113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202460172121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2735947830 + ... + 2735947903.

It is an arithmetic number, because the mean of its divisors is an integer number (51983009473).

Almost surely, 2^202460142121 is an apocalyptic number.

It is an amenable number.

202460142121 is a deficient number, since it is larger than the sum of its proper divisors (5471895771).

202460142121 is an equidigital number, since it uses as much as digits as its factorization.

202460142121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5471895770.

The product of its (nonzero) digits is 1536, while the sum is 25.

The spelling of 202460142121 in words is "two hundred two billion, four hundred sixty million, one hundred forty-two thousand, one hundred twenty-one".