121123010102311 has 4 divisors (see below), whose sum is σ = 138426297259792. Its totient is φ = 103819722944832.

The previous prime is 121123010102299. The next prime is 121123010102333. The reversal of 121123010102311 is 113201010321121.

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 121123010102311 - 2¹⁹ = 121123009578023 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 (121123010102371) 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, 8651643578730 + ... + 8651643578743.

It is an arithmetic number, because the mean of its divisors is an integer number (34606574314948).

Almost surely, 2^{121123010102311} is an apocalyptic number.

121123010102311 is a deficient number, since it is larger than the sum of its proper divisors (17303287157481).

121123010102311 is an equidigital number, since it uses as much as digits as its factorization.

121123010102311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17303287157480.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 121123010102311 its reverse (113201010321121), we get a palindrome (234324020423432).

The spelling of 121123010102311 in words is "one hundred twenty-one trillion, one hundred twenty-three billion, ten million, one hundred two thousand, three hundred eleven".