123301253490 has 128 divisors (see below), whose sum is σ = 309032699904. Its totient is φ = 31449600000.

The previous prime is 123301253479. The next prime is 123301253497. The reversal of 123301253490 is 94352103321.

It is a super-2 number, since 2×123301253490² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123301253497) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 102664890 + ... + 102666090.

It is an arithmetic number, because the mean of its divisors is an integer number (2414317968).

Almost surely, 2^123301253490 is an apocalyptic number.

123301253490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 123301253490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154516349952).

123301253490 is an abundant number, since it is smaller than the sum of its proper divisors (185731446414).

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

123301253490 is a wasteful number, since it uses less digits than its factorization.

123301253490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2436.

The product of its (nonzero) digits is 19440, while the sum is 33.

The spelling of 123301253490 in words is "one hundred twenty-three billion, three hundred one million, two hundred fifty-three thousand, four hundred ninety".