21119072413 has 4 divisors (see below), whose sum is σ = 22230602560. Its totient is φ = 20007542268.

The previous prime is 21119072389. The next prime is 21119072441. The reversal of 21119072413 is 31427091112.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21119072413 - 2²¹ = 21116975261 is a prime.

It is a super-4 number, since 4×21119072413⁴ (a number of 42 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21119072453) 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, 555765045 + ... + 555765082.

It is an arithmetic number, because the mean of its divisors is an integer number (5557650640).

Almost surely, 2^21119072413 is an apocalyptic number.

It is an amenable number.

21119072413 is a deficient number, since it is larger than the sum of its proper divisors (1111530147).

21119072413 is a wasteful number, since it uses less digits than its factorization.

21119072413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111530146.

The product of its (nonzero) digits is 3024, while the sum is 31.

The spelling of 21119072413 in words is "twenty-one billion, one hundred nineteen million, seventy-two thousand, four hundred thirteen".