23121001133211 has 32 divisors (see below), whose sum is σ = 31128599013120. Its totient is φ = 15264314626176.

The previous prime is 23121001133183. The next prime is 23121001133227. The reversal of 23121001133211 is 11233110012132.

It is not a de Polignac number, because 23121001133211 - 2¹⁵ = 23121001100443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23121001133231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 261514465 + ... + 261602861.

It is an arithmetic number, because the mean of its divisors is an integer number (972768719160).

Almost surely, 2^{23121001133211} is an apocalyptic number.

23121001133211 is a deficient number, since it is larger than the sum of its proper divisors (8007597879909).

23121001133211 is a wasteful number, since it uses less digits than its factorization.

23121001133211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90123.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 23121001133211 its reverse (11233110012132), we get a palindrome (34354111145343).

The spelling of 23121001133211 in words is "twenty-three trillion, one hundred twenty-one billion, one million, one hundred thirty-three thousand, two hundred eleven".