123303120331 has 4 divisors (see below), whose sum is σ = 123319260792. Its totient is φ = 123286979872.

The previous prime is 123303120323. The next prime is 123303120337. The reversal of 123303120331 is 133021303321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133021303321 = 23 ⋅5783534927.

It is a cyclic number.

It is not a de Polignac number, because 123303120331 - 2³ = 123303120323 is a prime.

It is a super-3 number, since 3×123303120331³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123303120337) 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, 8058766 + ... + 8074051.

It is an arithmetic number, because the mean of its divisors is an integer number (30829815198).

Almost surely, 2^123303120331 is an apocalyptic number.

123303120331 is a deficient number, since it is larger than the sum of its proper divisors (16140461).

123303120331 is an equidigital number, since it uses as much as digits as its factorization.

123303120331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16140460.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 123303120331 its reverse (133021303321), we get a palindrome (256324423652).

The spelling of 123303120331 in words is "one hundred twenty-three billion, three hundred three million, one hundred twenty thousand, three hundred thirty-one".