21311010429 has 8 divisors (see below), whose sum is σ = 28443590592. Its totient is φ = 14192885280.

The previous prime is 21311010401. The next prime is 21311010437. The reversal of 21311010429 is 92401011312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21311010429 - 2⁵ = 21311010397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21311010399 and 21311010408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21311011429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3610312 + ... + 3616209.

It is an arithmetic number, because the mean of its divisors is an integer number (3555448824).

Almost surely, 2^21311010429 is an apocalyptic number.

It is an amenable number.

21311010429 is a deficient number, since it is larger than the sum of its proper divisors (7132580163).

21311010429 is an equidigital number, since it uses as much as digits as its factorization.

21311010429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7227507.

The product of its (nonzero) digits is 432, while the sum is 24.

The spelling of 21311010429 in words is "twenty-one billion, three hundred eleven million, ten thousand, four hundred twenty-nine".