121002412443 has 16 divisors (see below), whose sum is σ = 176119145856. Its totient is φ = 73286613440.

The previous prime is 121002412429. The next prime is 121002412469. The reversal of 121002412443 is 344214200121.

It is a cyclic number.

It is not a de Polignac number, because 121002412443 - 2⁹ = 121002411931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121002412423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1153530 + ... + 1254047.

It is an arithmetic number, because the mean of its divisors is an integer number (11007446616).

Almost surely, 2^121002412443 is an apocalyptic number.

121002412443 is a deficient number, since it is larger than the sum of its proper divisors (55116733413).

121002412443 is a wasteful number, since it uses less digits than its factorization.

121002412443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2409114.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 121002412443 its reverse (344214200121), we get a palindrome (465216612564).

The spelling of 121002412443 in words is "one hundred twenty-one billion, two million, four hundred twelve thousand, four hundred forty-three".