11211421234 has 16 divisors (see below), whose sum is σ = 18112534272. Its totient is φ = 5173994448.

The previous prime is 11211421217. The next prime is 11211421297. The reversal of 11211421234 is 43212411211.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432607 + ... + 457789.

It is an arithmetic number, because the mean of its divisors is an integer number (1132033392).

Almost surely, 2^11211421234 is an apocalyptic number.

11211421234 is a deficient number, since it is larger than the sum of its proper divisors (6901113038).

11211421234 is a wasteful number, since it uses less digits than its factorization.

11211421234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42321.

The product of its digits is 384, while the sum is 22.

Adding to 11211421234 its reverse (43212411211), we get a palindrome (54423832445).

The spelling of 11211421234 in words is "eleven billion, two hundred eleven million, four hundred twenty-one thousand, two hundred thirty-four".