121323243011 has 2 divisors, whose sum is σ = 121323243012. Its totient is φ = 121323243010.

The previous prime is 121323242993. The next prime is 121323243023. The reversal of 121323243011 is 110342323121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121323243011 - 2⁶ = 121323242947 is a prime.

It is a super-2 number, since 2×121323243011² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121323243061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60661621505 + 60661621506.

It is an arithmetic number, because the mean of its divisors is an integer number (60661621506).

Almost surely, 2^121323243011 is an apocalyptic number.

121323243011 is a deficient number, since it is larger than the sum of its proper divisors (1).

121323243011 is an equidigital number, since it uses as much as digits as its factorization.

121323243011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 121323243011 its reverse (110342323121), we get a palindrome (231665566132).

The spelling of 121323243011 in words is "one hundred twenty-one billion, three hundred twenty-three million, two hundred forty-three thousand, eleven".