123112411120421 has 8 divisors (see below), whose sum is σ = 123492903948288. Its totient is φ = 122732357410000.

The previous prime is 123112411120417. The next prime is 123112411120493. The reversal of 123112411120421 is 124021114211321.

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 123112411120421 - 2² = 123112411120417 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 (123112411120411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109217765 + ... + 110339226.

It is an arithmetic number, because the mean of its divisors is an integer number (15436612993536).

Almost surely, 2^{123112411120421} is an apocalyptic number.

It is an amenable number.

123112411120421 is a deficient number, since it is larger than the sum of its proper divisors (380492827867).

123112411120421 is a wasteful number, since it uses less digits than its factorization.

123112411120421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219558723.

The product of its (nonzero) digits is 768, while the sum is 26.

Adding to 123112411120421 its reverse (124021114211321), we get a palindrome (247133525331742).

The spelling of 123112411120421 in words is "one hundred twenty-three trillion, one hundred twelve billion, four hundred eleven million, one hundred twenty thousand, four hundred twenty-one".