1103820042 has 32 divisors (see below), whose sum is σ = 2412954432. Its totient is φ = 334566144.

The previous prime is 1103820023. The next prime is 1103820043. The reversal of 1103820042 is 2400283011.

It is not an unprimeable number, because it can be changed into a prime (1103820043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100383 + ... + 110834.

It is an arithmetic number, because the mean of its divisors is an integer number (75404826).

Almost surely, 2^1103820042 is an apocalyptic number.

1103820042 is an abundant number, since it is smaller than the sum of its proper divisors (1309134390).

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

1103820042 is a wasteful number, since it uses less digits than its factorization.

1103820042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211302.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1103820042 is about 33223.7872916379. The cubic root of 1103820042 is about 1033.4736904269.

The spelling of 1103820042 in words is "one billion, one hundred three million, eight hundred twenty thousand, forty-two".