101421003042 has 32 divisors (see below), whose sum is σ = 225403239360. Its totient is φ = 33803516160.

The previous prime is 101421003037. The next prime is 101421003049. The reversal of 101421003042 is 240300124101.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (101421003049) 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, 461442 + ... + 644802.

It is an arithmetic number, because the mean of its divisors is an integer number (7043851230).

Almost surely, 2^101421003042 is an apocalyptic number.

101421003042 is an abundant number, since it is smaller than the sum of its proper divisors (123982236318).

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

101421003042 is a wasteful number, since it uses less digits than its factorization.

101421003042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193615 (or 193609 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 101421003042 its reverse (240300124101), we get a palindrome (341721127143).

The spelling of 101421003042 in words is "one hundred one billion, four hundred twenty-one million, three thousand, forty-two".