1230100015 has 4 divisors (see below), whose sum is σ = 1476120024. Its totient is φ = 984080008.

The previous prime is 1230099979. The next prime is 1230100021. The reversal of 1230100015 is 5100010321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1230100015 - 2⁷ = 1230099887 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230099968 and 1230100004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123009997 + ... + 123010006.

It is an arithmetic number, because the mean of its divisors is an integer number (369030006).

Almost surely, 2^1230100015 is an apocalyptic number.

1230100015 is a deficient number, since it is larger than the sum of its proper divisors (246020009).

1230100015 is an equidigital number, since it uses as much as digits as its factorization.

1230100015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246020008.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 1230100015 is about 35072.7816832369. The cubic root of 1230100015 is about 1071.4703096079.

Adding to 1230100015 its reverse (5100010321), we get a palindrome (6330110336).

The spelling of 1230100015 in words is "one billion, two hundred thirty million, one hundred thousand, fifteen".