122400523 has 8 divisors (see below), whose sum is σ = 140168448. Its totient is φ = 104703144.

The previous prime is 122400469. The next prime is 122400541. The reversal of 122400523 is 325004221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122400523 - 2¹⁷ = 122269451 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122400523.

It is not an unprimeable number, because it can be changed into a prime (122400563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13861 + ... + 20902.

It is an arithmetic number, because the mean of its divisors is an integer number (17521056).

Almost surely, 2^122400523 is an apocalyptic number.

122400523 is a deficient number, since it is larger than the sum of its proper divisors (17767925).

122400523 is an equidigital number, since it uses as much as digits as its factorization.

122400523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35273.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 122400523 is about 11063.4769851073. The cubic root of 122400523 is about 496.5097232953.

Adding to 122400523 its reverse (325004221), we get a palindrome (447404744).

The spelling of 122400523 in words is "one hundred twenty-two million, four hundred thousand, five hundred twenty-three".