123051442 has 4 divisors (see below), whose sum is σ = 184577166. Its totient is φ = 61525720.

The previous prime is 123051413. The next prime is 123051469. The reversal of 123051442 is 244150321.

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., 71081761 + 51969681 = 8431^2 + 7209^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30762859 + ... + 30762862.

Almost surely, 2^123051442 is an apocalyptic number.

123051442 is a deficient number, since it is larger than the sum of its proper divisors (61525724).

123051442 is an equidigital number, since it uses as much as digits as its factorization.

123051442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61525723.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 123051442 is about 11092.8554484407. The cubic root of 123051442 is about 497.3883045124.

The spelling of 123051442 in words is "one hundred twenty-three million, fifty-one thousand, four hundred forty-two".