121021301342 has 16 divisors (see below), whose sum is σ = 181929264000. Its totient is φ = 60378259032.

The previous prime is 121021301333. The next prime is 121021301381. The reversal of 121021301342 is 243103120121.

It is a super-2 number, since 2×121021301342² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9257903 + ... + 9270965.

It is an arithmetic number, because the mean of its divisors is an integer number (11370579000).

Almost surely, 2^121021301342 is an apocalyptic number.

121021301342 is a deficient number, since it is larger than the sum of its proper divisors (60907962658).

121021301342 is a wasteful number, since it uses less digits than its factorization.

121021301342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22847.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 121021301342 its reverse (243103120121), we get a palindrome (364124421463).

The spelling of 121021301342 in words is "one hundred twenty-one billion, twenty-one million, three hundred one thousand, three hundred forty-two".