121240443130434 has 48 divisors (see below), whose sum is σ = 267864111238464. Its totient is φ = 39624868404000.

The previous prime is 121240443130423. The next prime is 121240443130447. The reversal of 121240443130434 is 434031344042121.

121240443130434 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 40 + 443 + 130 + 43 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 323545332 + ... + 323919839.

It is an arithmetic number, because the mean of its divisors is an integer number (5580502317468).

Almost surely, 2^{121240443130434} is an apocalyptic number.

121240443130434 is an abundant number, since it is smaller than the sum of its proper divisors (146623668108030).

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

121240443130434 is a wasteful number, since it uses less digits than its factorization.

121240443130434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647465383 (or 647465380 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 121240443130434 its reverse (434031344042121), we get a palindrome (555271787172555).

The spelling of 121240443130434 in words is "one hundred twenty-one trillion, two hundred forty billion, four hundred forty-three million, one hundred thirty thousand, four hundred thirty-four".