23015201501 has 8 divisors (see below), whose sum is σ = 23643871320. Its totient is φ = 22386881088.

The previous prime is 23015201497. The next prime is 23015201527. The reversal of 23015201501 is 10510251032.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1742979001 + 21272222500 = 41749^2 + 145850^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23015201501 - 2² = 23015201497 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23015204501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49055 + ... + 220083.

It is an arithmetic number, because the mean of its divisors is an integer number (2955483915).

Almost surely, 2^23015201501 is an apocalyptic number.

It is an amenable number.

23015201501 is a deficient number, since it is larger than the sum of its proper divisors (628669819).

23015201501 is a wasteful number, since it uses less digits than its factorization.

23015201501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174703.

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 23015201501 its reverse (10510251032), we get a palindrome (33525452533).

The spelling of 23015201501 in words is "twenty-three billion, fifteen million, two hundred one thousand, five hundred one".