21367367043 has 16 divisors (see below), whose sum is σ = 31107536256. Its totient is φ = 12938365440.

The previous prime is 21367367029. The next prime is 21367367053. The reversal of 21367367043 is 34076376312.

It is not a de Polignac number, because 21367367043 - 2⁴ = 21367367027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21367366986 and 21367367004.

It is not an unprimeable number, because it can be changed into a prime (21367367023) 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, 251230 + ... + 325347.

It is an arithmetic number, because the mean of its divisors is an integer number (1944221016).

Almost surely, 2^21367367043 is an apocalyptic number.

21367367043 is a deficient number, since it is larger than the sum of its proper divisors (9740169213).

21367367043 is a wasteful number, since it uses less digits than its factorization.

21367367043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577714.

The product of its (nonzero) digits is 381024, while the sum is 42.

The spelling of 21367367043 in words is "twenty-one billion, three hundred sixty-seven million, three hundred sixty-seven thousand, forty-three".