11421031434 has 16 divisors (see below), whose sum is σ = 22843127520. Its totient is φ = 3806833040.

The previous prime is 11421031399. The next prime is 11421031451. The reversal of 11421031434 is 43413012411.

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, 191857 + ... + 244235.

It is an arithmetic number, because the mean of its divisors is an integer number (1427695470).

Almost surely, 2^11421031434 is an apocalyptic number.

11421031434 is an abundant number, since it is smaller than the sum of its proper divisors (11422096086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11421031434 is a wasteful number, since it uses less digits than its factorization.

11421031434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88725.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 11421031434 its reverse (43413012411), we get a palindrome (54834043845).

The spelling of 11421031434 in words is "eleven billion, four hundred twenty-one million, thirty-one thousand, four hundred thirty-four".