23143434515 has 8 divisors (see below), whose sum is σ = 28017893088. Its totient is φ = 18350899840.

The previous prime is 23143434487. The next prime is 23143434521. The reversal of 23143434515 is 51543434132.

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

It is not a de Polignac number, because 23143434515 - 2¹⁰ = 23143433491 is a prime.

It is a super-2 number, since 2×23143434515² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20480351 + ... + 20481480.

It is an arithmetic number, because the mean of its divisors is an integer number (3502236636).

Almost surely, 2^23143434515 is an apocalyptic number.

23143434515 is a deficient number, since it is larger than the sum of its proper divisors (4874458573).

23143434515 is a wasteful number, since it uses less digits than its factorization.

23143434515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40961949.

The product of its digits is 86400, while the sum is 35.

Adding to 23143434515 its reverse (51543434132), we get a palindrome (74686868647).

The spelling of 23143434515 in words is "twenty-three billion, one hundred forty-three million, four hundred thirty-four thousand, five hundred fifteen".