121311113201299 has 4 divisors (see below), whose sum is σ = 138641272230064. Its totient is φ = 103980954172536.

The previous prime is 121311113201281. The next prime is 121311113201347. The reversal of 121311113201299 is 992102311113121.

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

It is not a de Polignac number, because 121311113201299 - 2¹⁹ = 121311112677011 is a prime.

It is a super-2 number, since 2×121311113201299² (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 (121311111201299) 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, 8665079514372 + ... + 8665079514385.

It is an arithmetic number, because the mean of its divisors is an integer number (34660318057516).

Almost surely, 2^{121311113201299} is an apocalyptic number.

121311113201299 is a deficient number, since it is larger than the sum of its proper divisors (17330159028765).

121311113201299 is an equidigital number, since it uses as much as digits as its factorization.

121311113201299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17330159028764.

The product of its (nonzero) digits is 5832, while the sum is 37.

The spelling of 121311113201299 in words is "one hundred twenty-one trillion, three hundred eleven billion, one hundred thirteen million, two hundred one thousand, two hundred ninety-nine".