21112025367 has 4 divisors (see below), whose sum is σ = 28149367160. Its totient is φ = 14074683576.

The previous prime is 21112025329. The next prime is 21112025411. The reversal of 21112025367 is 76352021112.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 21112025367 - 2⁶ = 21112025303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112025267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3518670892 + ... + 3518670897.

It is an arithmetic number, because the mean of its divisors is an integer number (7037341790).

Almost surely, 2^21112025367 is an apocalyptic number.

21112025367 is a deficient number, since it is larger than the sum of its proper divisors (7037341793).

21112025367 is an equidigital number, since it uses as much as digits as its factorization.

21112025367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7037341792.

The product of its (nonzero) digits is 5040, while the sum is 30.

Adding to 21112025367 its reverse (76352021112), we get a palindrome (97464046479).

The spelling of 21112025367 in words is "twenty-one billion, one hundred twelve million, twenty-five thousand, three hundred sixty-seven".