123353429490 has 48 divisors (see below), whose sum is σ = 321288709248. Its totient is φ = 32835807648.

The previous prime is 123353429453. The next prime is 123353429533. The reversal of 123353429490 is 94924353321.

123353429490 is a `hidden beast` number, since 1 + 2 + 3 + 3 + 534 + 29 + 4 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1166554 + ... + 1267893.

It is an arithmetic number, because the mean of its divisors is an integer number (6693514776).

Almost surely, 2^123353429490 is an apocalyptic number.

123353429490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123353429490 is an abundant number, since it is smaller than the sum of its proper divisors (197935279758).

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

123353429490 is a wasteful number, since it uses less digits than its factorization.

123353429490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435023 (or 2435020 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 45.

The spelling of 123353429490 in words is "one hundred twenty-three billion, three hundred fifty-three million, four hundred twenty-nine thousand, four hundred ninety".