123320011430 has 128 divisors (see below), whose sum is σ = 278902600704. Its totient is φ = 38139379200.

The previous prime is 123320011427. The next prime is 123320011487. The reversal of 123320011430 is 34110023321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 94352837 + ... + 94354143.

It is an arithmetic number, because the mean of its divisors is an integer number (2178926568).

Almost surely, 2^123320011430 is an apocalyptic number.

123320011430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123320011430 is an abundant number, since it is smaller than the sum of its proper divisors (155582589274).

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

123320011430 is a wasteful number, since it uses less digits than its factorization.

123320011430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 123320011430 its reverse (34110023321), we get a palindrome (157430034751).

The spelling of 123320011430 in words is "one hundred twenty-three billion, three hundred twenty million, eleven thousand, four hundred thirty".