103002023021 has 4 divisors (see below), whose sum is σ = 107480371872. Its totient is φ = 98523674172.

The previous prime is 103002023017. The next prime is 103002023029. The reversal of 103002023021 is 120320200301.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120320200301 = 7 ⋅17188600043.

It is a cyclic number.

It is not a de Polignac number, because 103002023021 - 2² = 103002023017 is a prime.

It is a super-2 number, since 2×103002023021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 103002022987 and 103002023005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103002023029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2239174391 + ... + 2239174436.

It is an arithmetic number, because the mean of its divisors is an integer number (26870092968).

Almost surely, 2^103002023021 is an apocalyptic number.

It is an amenable number.

103002023021 is a deficient number, since it is larger than the sum of its proper divisors (4478348851).

103002023021 is an equidigital number, since it uses as much as digits as its factorization.

103002023021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4478348850.

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

Adding to 103002023021 its reverse (120320200301), we get a palindrome (223322223322).

The spelling of 103002023021 in words is "one hundred three billion, two million, twenty-three thousand, twenty-one".