121313403231401 has 4 divisors (see below), whose sum is σ = 121657067263572. Its totient is φ = 120969739199232.

The previous prime is 121313403231389. The next prime is 121313403231421. The reversal of 121313403231401 is 104132304313121.

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 68304009861376 + 53009393370025 = 8264624^2 + 7280755^2 .

It is a cyclic number.

It is not a de Polignac number, because 121313403231401 - 2⁶ = 121313403231337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121313403231421) 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, 171832015556 + ... + 171832016261.

It is an arithmetic number, because the mean of its divisors is an integer number (30414266815893).

Almost surely, 2^{121313403231401} is an apocalyptic number.

It is an amenable number.

121313403231401 is a deficient number, since it is larger than the sum of its proper divisors (343664032171).

121313403231401 is an equidigital number, since it uses as much as digits as its factorization.

121313403231401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343664032170.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 121313403231401 its reverse (104132304313121), we get a palindrome (225445707544522).

The spelling of 121313403231401 in words is "one hundred twenty-one trillion, three hundred thirteen billion, four hundred three million, two hundred thirty-one thousand, four hundred one".