1202100042 has 48 divisors (see below), whose sum is σ = 2840060448. Its totient is φ = 336248640.

The previous prime is 1202100041. The next prime is 1202100071. The reversal of 1202100042 is 2400012021.

It is not an unprimeable number, because it can be changed into a prime (1202100041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42733 + ... + 65040.

It is an arithmetic number, because the mean of its divisors is an integer number (59167926).

Almost surely, 2^1202100042 is an apocalyptic number.

1202100042 is an abundant number, since it is smaller than the sum of its proper divisors (1637960406).

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

1202100042 is a wasteful number, since it uses less digits than its factorization.

1202100042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107815 (or 107802 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1202100042 is about 34671.3143967747. The cubic root of 1202100042 is about 1063.2781044833.

Adding to 1202100042 its reverse (2400012021), we get a palindrome (3602112063).

The spelling of 1202100042 in words is "one billion, two hundred two million, one hundred thousand, forty-two".