123220354 has 4 divisors (see below), whose sum is σ = 184830534. Its totient is φ = 61610176.

The previous prime is 123220337. The next prime is 123220421. The reversal of 123220354 is 453022321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 121594729 + 1625625 = 11027^2 + 1275^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30805087 + ... + 30805090.

Almost surely, 2^123220354 is an apocalyptic number.

123220354 is a deficient number, since it is larger than the sum of its proper divisors (61610180).

123220354 is an equidigital number, since it uses as much as digits as its factorization.

123220354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61610179.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 123220354 is about 11100.4663865984. The cubic root of 123220354 is about 497.6157878017.

Adding to 123220354 its reverse (453022321), we get a palindrome (576242675).

The spelling of 123220354 in words is "one hundred twenty-three million, two hundred twenty thousand, three hundred fifty-four".