23120011111011 has 16 divisors (see below), whose sum is σ = 31126560875520. Its totient is φ = 15263556187680.

The previous prime is 23120011110997. The next prime is 23120011111033. The reversal of 23120011111011 is 11011111002132.

It is not a de Polignac number, because 23120011111011 - 2²³ = 23120002722403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23120011111511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18795925 + ... + 19988166.

It is an arithmetic number, because the mean of its divisors is an integer number (1945410054720).

Almost surely, 2^{23120011111011} is an apocalyptic number.

23120011111011 is a deficient number, since it is larger than the sum of its proper divisors (8006549764509).

23120011111011 is a wasteful number, since it uses less digits than its factorization.

23120011111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38786026.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 23120011111011 its reverse (11011111002132), we get a palindrome (34131122113143).

The spelling of 23120011111011 in words is "twenty-three trillion, one hundred twenty billion, eleven million, one hundred eleven thousand, eleven".