121320200032111 has 4 divisors (see below), whose sum is σ = 121341638489800. Its totient is φ = 121298761574424.

The previous prime is 121320200032037. The next prime is 121320200032117. The reversal of 121320200032111 is 111230002023121.

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 121320200032111 - 2¹⁵ = 121320199999343 is a prime.

It is a super-2 number, since 2×121320200032111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121320200032117) 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, 10719220356 + ... + 10719231673.

It is an arithmetic number, because the mean of its divisors is an integer number (30335409622450).

Almost surely, 2^{121320200032111} is an apocalyptic number.

121320200032111 is a deficient number, since it is larger than the sum of its proper divisors (21438457689).

121320200032111 is an equidigital number, since it uses as much as digits as its factorization.

121320200032111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21438457688.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121320200032111 its reverse (111230002023121), we get a palindrome (232550202055232).

The spelling of 121320200032111 in words is "one hundred twenty-one trillion, three hundred twenty billion, two hundred million, thirty-two thousand, one hundred eleven".