21031311102229 has 8 divisors (see below), whose sum is σ = 21192902742528. Its totient is φ = 20869735330080.

The previous prime is 21031311102223. The next prime is 21031311102233. The reversal of 21031311102229 is 92220111313012.

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

It is a cyclic number.

It is not a de Polignac number, because 21031311102229 - 2¹³ = 21031311094037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21031311102197 and 21031311102206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21031311102223) 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, 1299232 + ... + 6614425.

It is an arithmetic number, because the mean of its divisors is an integer number (2649112842816).

Almost surely, 2^{21031311102229} is an apocalyptic number.

It is an amenable number.

21031311102229 is a deficient number, since it is larger than the sum of its proper divisors (161591640299).

21031311102229 is a wasteful number, since it uses less digits than its factorization.

21031311102229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7934075.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 21031311102229 in words is "twenty-one trillion, thirty-one billion, three hundred eleven million, one hundred two thousand, two hundred twenty-nine".