21034877843012 has 48 divisors (see below), whose sum is σ = 40947078699072. Its totient is φ = 9373593041280.

The previous prime is 21034877842961. The next prime is 21034877843029.

21034877843012 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 523283 + ... + 6507194.

It is an arithmetic number, because the mean of its divisors is an integer number (853064139564).

Almost surely, 2^{21034877843012} is an apocalyptic number.

21034877843012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21034877843012 is a deficient number, since it is larger than the sum of its proper divisors (19912200856060).

21034877843012 is a wasteful number, since it uses less digits than its factorization.

21034877843012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7031828 (or 7031826 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 50.

It can be divided in two parts, 2103487 and 7843012, that added together give a palindrome (9946499).

The spelling of 21034877843012 in words is "twenty-one trillion, thirty-four billion, eight hundred seventy-seven million, eight hundred forty-three thousand, twelve".