23211012345 has 16 divisors (see below), whose sum is σ = 37220342400. Its totient is φ = 12351632384.

The previous prime is 23211012317. The next prime is 23211012353. The reversal of 23211012345 is 54321011232.

It is a cyclic number.

It is not a de Polignac number, because 23211012345 - 2²¹ = 23208915193 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1716429 + ... + 1729898.

It is an arithmetic number, because the mean of its divisors is an integer number (2326271400).

Almost surely, 2^23211012345 is an apocalyptic number.

It is an amenable number.

23211012345 is a deficient number, since it is larger than the sum of its proper divisors (14009330055).

23211012345 is a wasteful number, since it uses less digits than its factorization.

23211012345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3446784.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 23211012345 its reverse (54321011232), we get a palindrome (77532023577).

The spelling of 23211012345 in words is "twenty-three billion, two hundred eleven million, twelve thousand, three hundred forty-five".