331331220123 has 16 divisors (see below), whose sum is σ = 457317338400. Its totient is φ = 213126583040.

The previous prime is 331331220071. The next prime is 331331220127. The reversal of 331331220123 is 321022133133.

It is a cyclic number.

It is not a de Polignac number, because 331331220123 - 2¹⁴ = 331331203739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 331331220093 and 331331220102.

It is not an unprimeable number, because it can be changed into a prime (331331220127) 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, 1156908 + ... + 1414601.

It is an arithmetic number, because the mean of its divisors is an integer number (28582333650).

Almost surely, 2^331331220123 is an apocalyptic number.

331331220123 is a deficient number, since it is larger than the sum of its proper divisors (125986118277).

331331220123 is a wasteful number, since it uses less digits than its factorization.

331331220123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573022.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 331331220123 its reverse (321022133133), we get a palindrome (652353353256).

The spelling of 331331220123 in words is "three hundred thirty-one billion, three hundred thirty-one million, two hundred twenty thousand, one hundred twenty-three".