121423403120311 has 8 divisors (see below), whose sum is σ = 121444515344880. Its totient is φ = 121402292723712.

The previous prime is 121423403120293. The next prime is 121423403120497. The reversal of 121423403120311 is 113021304324121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121423403120311 - 2³⁵ = 121389043381943 is a prime.

It is a super-2 number, since 2×121423403120311² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121423403120311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121423403820311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135919845 + ... + 136810273.

It is an arithmetic number, because the mean of its divisors is an integer number (15180564418110).

Almost surely, 2^{121423403120311} is an apocalyptic number.

121423403120311 is a deficient number, since it is larger than the sum of its proper divisors (21112224569).

121423403120311 is a wasteful number, since it uses less digits than its factorization.

121423403120311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913985.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 121423403120311 its reverse (113021304324121), we get a palindrome (234444707444432).

The spelling of 121423403120311 in words is "one hundred twenty-one trillion, four hundred twenty-three billion, four hundred three million, one hundred twenty thousand, three hundred eleven".