202121453015342 has 24 divisors (see below), whose sum is σ = 354629826434520. Its totient is φ = 86144897094480.

The previous prime is 202121453015323. The next prime is 202121453015357. The reversal of 202121453015342 is 243510354121202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5697396092 + ... + 5697431567.

It is an arithmetic number, because the mean of its divisors is an integer number (14776242768105).

Almost surely, 2^{202121453015342} is an apocalyptic number.

202121453015342 is a deficient number, since it is larger than the sum of its proper divisors (152508373419178).

202121453015342 is a wasteful number, since it uses less digits than its factorization.

202121453015342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11394827856 (or 11394827849 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 202121453015342 in words is "two hundred two trillion, one hundred twenty-one billion, four hundred fifty-three million, fifteen thousand, three hundred forty-two".