123020010003 has 32 divisors (see below), whose sum is σ = 180270968832. Its totient is φ = 74003076000.

The previous prime is 123020009953. The next prime is 123020010007. The reversal of 123020010003 is 300010020321.

It is a happy number.

It is not a de Polignac number, because 123020010003 - 2²⁰ = 123018961427 is a prime.

It is a super-2 number, since 2×123020010003² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123020010007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6483376 + ... + 6502322.

It is an arithmetic number, because the mean of its divisors is an integer number (5633467776).

Almost surely, 2^123020010003 is an apocalyptic number.

123020010003 is a deficient number, since it is larger than the sum of its proper divisors (57250958829).

123020010003 is a wasteful number, since it uses less digits than its factorization.

123020010003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20415.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 123020010003 its reverse (300010020321), we get a palindrome (423030030324).

The spelling of 123020010003 in words is "one hundred twenty-three billion, twenty million, ten thousand, three".