23311015145 has 32 divisors (see below), whose sum is σ = 33099446016. Its totient is φ = 15567001600.

The previous prime is 23311015121. The next prime is 23311015187. The reversal of 23311015145 is 54151011332.

It is not a de Polignac number, because 23311015145 - 2¹⁰ = 23311014121 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 265709 + ... + 342378.

It is an arithmetic number, because the mean of its divisors is an integer number (1034357688).

Almost surely, 2^23311015145 is an apocalyptic number.

It is an amenable number.

23311015145 is a deficient number, since it is larger than the sum of its proper divisors (9788430871).

23311015145 is a wasteful number, since it uses less digits than its factorization.

23311015145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608161.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 23311015145 its reverse (54151011332), we get a palindrome (77462026477).

The spelling of 23311015145 in words is "twenty-three billion, three hundred eleven million, fifteen thousand, one hundred forty-five".