123311322030 has 32 divisors (see below), whose sum is σ = 318712341024. Its totient is φ = 30353556096.

The previous prime is 123311322023. The next prime is 123311322047. The reversal of 123311322030 is 30223113321.

It is a junction number, because it is equal to n+sod(n) for n = 123311321988 and 123311322006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158091049 + ... + 158091828.

It is an arithmetic number, because the mean of its divisors is an integer number (9959760657).

Almost surely, 2^123311322030 is an apocalyptic number.

123311322030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123311322030 is an abundant number, since it is smaller than the sum of its proper divisors (195401018994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123311322030 is a wasteful number, since it uses less digits than its factorization.

123311322030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316182900.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 123311322030 its reverse (30223113321), we get a palindrome (153534435351).

The spelling of 123311322030 in words is "one hundred twenty-three billion, three hundred eleven million, three hundred twenty-two thousand, thirty".