331223400212123 has 4 divisors (see below), whose sum is σ = 331223576362128. Its totient is φ = 331223224062120.

The previous prime is 331223400212071. The next prime is 331223400212191. The reversal of 331223400212123 is 321212004322133.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 331223400212123 - 2²⁴ = 331223383434907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331223400272123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85223711 + ... + 89025432.

It is an arithmetic number, because the mean of its divisors is an integer number (82805894090532).

Almost surely, 2^{331223400212123} is an apocalyptic number.

331223400212123 is a deficient number, since it is larger than the sum of its proper divisors (176150005).

331223400212123 is a wasteful number, since it uses less digits than its factorization.

331223400212123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176150004.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 331223400212123 its reverse (321212004322133), we get a palindrome (652435404534256).

The spelling of 331223400212123 in words is "three hundred thirty-one trillion, two hundred twenty-three billion, four hundred million, two hundred twelve thousand, one hundred twenty-three".