103210042 has 16 divisors (see below), whose sum is σ = 166942440. Its totient is φ = 47572992.

The previous prime is 103210021. The next prime is 103210069. The reversal of 103210042 is 240012301.

It can be written as a sum of positive squares in 4 ways, for example, as 27363361 + 75846681 = 5231^2 + 8709^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22018 + ... + 26290.

Almost surely, 2^103210042 is an apocalyptic number.

103210042 is a deficient number, since it is larger than the sum of its proper divisors (63732398).

103210042 is a wasteful number, since it uses less digits than its factorization.

103210042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5217.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 103210042 is about 10159.2343215422. The cubic root of 103210042 is about 469.0732333667.

Adding to 103210042 its reverse (240012301), we get a palindrome (343222343).

The spelling of 103210042 in words is "one hundred three million, two hundred ten thousand, forty-two".