103042100021 has 16 divisors (see below), whose sum is σ = 118959456000. Its totient is φ = 87428401920.

The previous prime is 103042100009. The next prime is 103042100053. The reversal of 103042100021 is 120001240301.

It is a cyclic number.

It is not a de Polignac number, because 103042100021 - 2⁶ = 103042099957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103042099969 and 103042100005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103042100081) 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, 98855 + ... + 464603.

It is an arithmetic number, because the mean of its divisors is an integer number (7434966000).

Almost surely, 2^103042100021 is an apocalyptic number.

It is an amenable number.

103042100021 is a deficient number, since it is larger than the sum of its proper divisors (15917355979).

103042100021 is a wasteful number, since it uses less digits than its factorization.

103042100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366164.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 103042100021 its reverse (120001240301), we get a palindrome (223043340322).

The spelling of 103042100021 in words is "one hundred three billion, forty-two million, one hundred thousand, twenty-one".