21111230013019 has 16 divisors (see below), whose sum is σ = 21707663947200. Its totient is φ = 20524974238720.

The previous prime is 21111230012989. The next prime is 21111230013031. The reversal of 21111230013019 is 91031003211112.

It is a cyclic number.

It is not a de Polignac number, because 21111230013019 - 2⁷ = 21111230012891 is a prime.

It is a super-2 number, since 2×21111230013019² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21111230012984 and 21111230013002.

It is not an unprimeable number, because it can be changed into a prime (21111230013079) 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, 5097994 + ... + 8259055.

It is an arithmetic number, because the mean of its divisors is an integer number (1356728996700).

Almost surely, 2^{21111230013019} is an apocalyptic number.

21111230013019 is a deficient number, since it is larger than the sum of its proper divisors (596433934181).

21111230013019 is a wasteful number, since it uses less digits than its factorization.

21111230013019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13357430.

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 21111230013019 in words is "twenty-one trillion, one hundred eleven billion, two hundred thirty million, thirteen thousand, nineteen".