342525021020021 has 12 divisors (see below), whose sum is σ = 398460823009920. Its totient is φ = 293583038628600.

The previous prime is 342525021020009. The next prime is 342525021020177. The reversal of 342525021020021 is 120020120525243.

It is a happy number.

It is not a de Polignac number, because 342525021020021 - 2³⁰ = 342523947278197 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 (342525021029021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115623941 + ... + 118549338.

It is an arithmetic number, because the mean of its divisors is an integer number (33205068584160).

Almost surely, 2^{342525021020021} is an apocalyptic number.

It is an amenable number.

342525021020021 is a deficient number, since it is larger than the sum of its proper divisors (55935801989899).

342525021020021 is a wasteful number, since it uses less digits than its factorization.

342525021020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234203144 (or 234203137 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 342525021020021 its reverse (120020120525243), we get a palindrome (462545141545264).

The spelling of 342525021020021 in words is "three hundred forty-two trillion, five hundred twenty-five billion, twenty-one million, twenty thousand, twenty-one".