20150403023 has 2 divisors, whose sum is σ = 20150403024. Its totient is φ = 20150403022.

The previous prime is 20150402983. The next prime is 20150403029. The reversal of 20150403023 is 32030405102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20150403023 - 2¹² = 20150398927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20150402986 and 20150403004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20150403029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10075201511 + 10075201512.

It is an arithmetic number, because the mean of its divisors is an integer number (10075201512).

Almost surely, 2^20150403023 is an apocalyptic number.

20150403023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20150403023 is an equidigital number, since it uses as much as digits as its factorization.

20150403023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 20150403023 its reverse (32030405102), we get a palindrome (52180808125).

The spelling of 20150403023 in words is "twenty billion, one hundred fifty million, four hundred three thousand, twenty-three".