121312341340411 has 4 divisors (see below), whose sum is σ = 130644059905072. Its totient is φ = 111980622775752.

The previous prime is 121312341340397. The next prime is 121312341340417. The reversal of 121312341340411 is 114043143213121.

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

It is a cyclic number.

It is not a de Polignac number, because 121312341340411 - 2³¹ = 121310193856763 is a prime.

It is a super-2 number, since 2×121312341340411² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121312341340417) 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, 4665859282311 + ... + 4665859282336.

It is an arithmetic number, because the mean of its divisors is an integer number (32661014976268).

Almost surely, 2^{121312341340411} is an apocalyptic number.

121312341340411 is a deficient number, since it is larger than the sum of its proper divisors (9331718564661).

121312341340411 is an equidigital number, since it uses as much as digits as its factorization.

121312341340411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9331718564660.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 121312341340411 its reverse (114043143213121), we get a palindrome (235355484553532).

The spelling of 121312341340411 in words is "one hundred twenty-one trillion, three hundred twelve billion, three hundred forty-one million, three hundred forty thousand, four hundred eleven".