123112032121 has 8 divisors (see below), whose sum is σ = 133460218304. Its totient is φ = 112889278800.

The previous prime is 123112032107. The next prime is 123112032151. The reversal of 123112032121 is 121230211321.

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 123112032121 - 2³¹ = 120964548473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123112032151) 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, 31356171 + ... + 31360096.

It is an arithmetic number, because the mean of its divisors is an integer number (16682527288).

Almost surely, 2^123112032121 is an apocalyptic number.

It is an amenable number.

123112032121 is a deficient number, since it is larger than the sum of its proper divisors (10348186183).

123112032121 is a wasteful number, since it uses less digits than its factorization.

123112032121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62716431.

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

Adding to 123112032121 its reverse (121230211321), we get a palindrome (244342243442).

The spelling of 123112032121 in words is "one hundred twenty-three billion, one hundred twelve million, thirty-two thousand, one hundred twenty-one".