20150240003 has 2 divisors, whose sum is σ = 20150240004. Its totient is φ = 20150240002.

The previous prime is 20150239981. The next prime is 20150240021. The reversal of 20150240003 is 30004205102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20150240003 is a prime.

It is not a weakly prime, because it can be changed into another prime (20150240503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10075120001 + 10075120002.

It is an arithmetic number, because the mean of its divisors is an integer number (10075120002).

Almost surely, 2^20150240003 is an apocalyptic number.

20150240003 is a deficient number, since it is larger than the sum of its proper divisors (1).

20150240003 is an equidigital number, since it uses as much as digits as its factorization.

20150240003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 17.

Adding to 20150240003 its reverse (30004205102), we get a palindrome (50154445105).

The spelling of 20150240003 in words is "twenty billion, one hundred fifty million, two hundred forty thousand, three".