101002020003 has 12 divisors (see below), whose sum is σ = 148995888288. Its totient is φ = 65902026960.

The previous prime is 101002020001. The next prime is 101002020011. The reversal of 101002020003 is 300020200101.

It is a happy number.

It is not a de Polignac number, because 101002020003 - 2¹ = 101002020001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (101002020001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119387308 + ... + 119388153.

It is an arithmetic number, because the mean of its divisors is an integer number (12416324024).

Almost surely, 2^101002020003 is an apocalyptic number.

101002020003 is a deficient number, since it is larger than the sum of its proper divisors (47993868285).

101002020003 is a wasteful number, since it uses less digits than its factorization.

101002020003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238775514 (or 238775511 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 101002020003 its reverse (300020200101), we get a palindrome (401022220104).

The spelling of 101002020003 in words is "one hundred one billion, two million, twenty thousand, three".