121432200413 has 4 divisors (see below), whose sum is σ = 121526408220. Its totient is φ = 121337992608.

The previous prime is 121432200403. The next prime is 121432200437. The reversal of 121432200413 is 314002234121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 115353971044 + 6078229369 = 339638^2 + 77963^2 .

It is a cyclic number.

It is not a de Polignac number, because 121432200413 - 2¹⁶ = 121432134877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121432200403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47101970 + ... + 47104547.

It is an arithmetic number, because the mean of its divisors is an integer number (30381602055).

Almost surely, 2^121432200413 is an apocalyptic number.

It is an amenable number.

121432200413 is a deficient number, since it is larger than the sum of its proper divisors (94207807).

121432200413 is an equidigital number, since it uses as much as digits as its factorization.

121432200413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94207806.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 121432200413 its reverse (314002234121), we get a palindrome (435434434534).

The spelling of 121432200413 in words is "one hundred twenty-one billion, four hundred thirty-two million, two hundred thousand, four hundred thirteen".