102140420403 has 16 divisors (see below), whose sum is σ = 155684291840. Its totient is φ = 58350299616.

The previous prime is 102140420341. The next prime is 102140420413. The reversal of 102140420403 is 304024041201.

It is not a de Polignac number, because 102140420403 - 2¹⁸ = 102140158259 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 102140420403.

It is not an unprimeable number, because it can be changed into a prime (102140420413) 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, 571900 + ... + 728937.

It is an arithmetic number, because the mean of its divisors is an integer number (9730268240).

Almost surely, 2^102140420403 is an apocalyptic number.

102140420403 is a deficient number, since it is larger than the sum of its proper divisors (53543871437).

102140420403 is a wasteful number, since it uses less digits than its factorization.

102140420403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304586.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 102140420403 its reverse (304024041201), we get a palindrome (406164461604).

The spelling of 102140420403 in words is "one hundred two billion, one hundred forty million, four hundred twenty thousand, four hundred three".