342311111121 has 16 divisors (see below), whose sum is σ = 552300280704. Its totient is φ = 184100093184.

The previous prime is 342311111047. The next prime is 342311111137. The reversal of 342311111121 is 121111113243.

It is a happy number.

It is not a de Polignac number, because 342311111121 - 2¹⁵ = 342311078353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (342311111521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 479426970 + ... + 479427683.

It is an arithmetic number, because the mean of its divisors is an integer number (34518767544).

Almost surely, 2^342311111121 is an apocalyptic number.

It is an amenable number.

342311111121 is a deficient number, since it is larger than the sum of its proper divisors (209989169583).

342311111121 is a wasteful number, since it uses less digits than its factorization.

342311111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958854680.

The product of its digits is 144, while the sum is 21.

Adding to 342311111121 its reverse (121111113243), we get a palindrome (463422224364).

The spelling of 342311111121 in words is "three hundred forty-two billion, three hundred eleven million, one hundred eleven thousand, one hundred twenty-one".