121043432013 has 8 divisors (see below), whose sum is σ = 184447134528. Its totient is φ = 69167675424.

The previous prime is 121043431997. The next prime is 121043432093. The reversal of 121043432013 is 310234340121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121043432013 - 2⁴ = 121043431997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121043432093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2881986456 + ... + 2881986497.

It is an arithmetic number, because the mean of its divisors is an integer number (23055891816).

Almost surely, 2^121043432013 is an apocalyptic number.

It is an amenable number.

121043432013 is a deficient number, since it is larger than the sum of its proper divisors (63403702515).

121043432013 is an equidigital number, since it uses as much as digits as its factorization.

121043432013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5763972963.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 121043432013 its reverse (310234340121), we get a palindrome (431277772134).

The spelling of 121043432013 in words is "one hundred twenty-one billion, forty-three million, four hundred thirty-two thousand, thirteen".