20150230401 has 12 divisors (see below), whose sum is σ = 33263872512. Its totient is φ = 11514417336.

The previous prime is 20150230363. The next prime is 20150230409. The reversal of 20150230401 is 10403205102.

20150230401 is a `hidden beast` number, since 20 + 15 + 0 + 230 + 401 = 666.

It is not a de Polignac number, because 20150230401 - 2¹¹ = 20150228353 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20150230409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159922401 + ... + 159922526.

It is an arithmetic number, because the mean of its divisors is an integer number (2771989376).

Almost surely, 2^20150230401 is an apocalyptic number.

20150230401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20150230401 is a deficient number, since it is larger than the sum of its proper divisors (13113642111).

20150230401 is a wasteful number, since it uses less digits than its factorization.

20150230401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319844940 (or 319844937 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 20150230401 its reverse (10403205102), we get a palindrome (30553435503).

The spelling of 20150230401 in words is "twenty billion, one hundred fifty million, two hundred thirty thousand, four hundred one".