103020032021 has 16 divisors (see below), whose sum is σ = 107942284800. Its totient is φ = 98135081088.

The previous prime is 103020031999. The next prime is 103020032033. The reversal of 103020032021 is 120230020301.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-103020032021 is a prime.

It is a super-2 number, since 2×103020032021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103020031987 and 103020032005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103020032051) 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, 20442020 + ... + 20447058.

It is an arithmetic number, because the mean of its divisors is an integer number (6746392800).

Almost surely, 2^103020032021 is an apocalyptic number.

It is an amenable number.

103020032021 is a deficient number, since it is larger than the sum of its proper divisors (4922252779).

103020032021 is a wasteful number, since it uses less digits than its factorization.

103020032021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8548.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 103020032021 its reverse (120230020301), we get a palindrome (223250052322).

The spelling of 103020032021 in words is "one hundred three billion, twenty million, thirty-two thousand, twenty-one".