121203432013 has 2 divisors, whose sum is σ = 121203432014. Its totient is φ = 121203432012.

The previous prime is 121203431941. The next prime is 121203432023. The reversal of 121203432013 is 310234302121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108173894404 + 13029537609 = 328898^2 + 114147^2 .

It is an emirp because it is prime and its reverse (310234302121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121203432013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121203432023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60601716006 + 60601716007.

It is an arithmetic number, because the mean of its divisors is an integer number (60601716007).

Almost surely, 2^121203432013 is an apocalyptic number.

It is an amenable number.

121203432013 is a deficient number, since it is larger than the sum of its proper divisors (1).

121203432013 is an equidigital number, since it uses as much as digits as its factorization.

121203432013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 121203432013 its reverse (310234302121), we get a palindrome (431437734134).

The spelling of 121203432013 in words is "one hundred twenty-one billion, two hundred three million, four hundred thirty-two thousand, thirteen".