21014331034 has 4 divisors (see below), whose sum is σ = 31521496554. Its totient is φ = 10507165516.

The previous prime is 21014331029. The next prime is 21014331043. The reversal of 21014331034 is 43013341012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19755145809 + 1259185225 = 140553^2 + 35485^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21014330996 and 21014331014.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5253582757 + ... + 5253582760.

Almost surely, 2^21014331034 is an apocalyptic number.

21014331034 is a deficient number, since it is larger than the sum of its proper divisors (10507165520).

21014331034 is a wasteful number, since it uses less digits than its factorization.

21014331034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10507165519.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21014331034 its reverse (43013341012), we get a palindrome (64027672046).

The spelling of 21014331034 in words is "twenty-one billion, fourteen million, three hundred thirty-one thousand, thirty-four".