201024100042 has 32 divisors (see below), whose sum is σ = 305664347520. Its totient is φ = 99148134720.

The previous prime is 201024100021. The next prime is 201024100093. The reversal of 201024100042 is 240001420102.

It is a junction number, because it is equal to n+sod(n) for n = 201024099989 and 201024100025.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24241917 + ... + 24250207.

It is an arithmetic number, because the mean of its divisors is an integer number (9552010860).

Almost surely, 2^201024100042 is an apocalyptic number.

201024100042 is a deficient number, since it is larger than the sum of its proper divisors (104640247478).

201024100042 is a wasteful number, since it uses less digits than its factorization.

201024100042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9006.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 201024100042 its reverse (240001420102), we get a palindrome (441025520144).

The spelling of 201024100042 in words is "two hundred one billion, twenty-four million, one hundred thousand, forty-two".