121323114440142 has 16 divisors (see below), whose sum is σ = 242660951863632. Its totient is φ = 40438584316160.

The previous prime is 121323114440053. The next prime is 121323114440239. The reversal of 121323114440142 is 241044411323121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 613350513 + ... + 613548284.

It is an arithmetic number, because the mean of its divisors is an integer number (15166309491477).

Almost surely, 2^{121323114440142} is an apocalyptic number.

121323114440142 is an abundant number, since it is smaller than the sum of its proper divisors (121337837423490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121323114440142 is a wasteful number, since it uses less digits than its factorization.

121323114440142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226915283.

The product of its (nonzero) digits is 18432, while the sum is 33.

Adding to 121323114440142 its reverse (241044411323121), we get a palindrome (362367525763263).

The spelling of 121323114440142 in words is "one hundred twenty-one trillion, three hundred twenty-three billion, one hundred fourteen million, four hundred forty thousand, one hundred forty-two".