211132403440 has 120 divisors (see below), whose sum is σ = 601081238160. Its totient is φ = 68578320384.

The previous prime is 211132403429. The next prime is 211132403479. The reversal of 211132403440 is 44304231112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1342897 + ... + 1491856.

It is an arithmetic number, because the mean of its divisors is an integer number (5009010318).

Almost surely, 2^211132403440 is an apocalyptic number.

211132403440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211132403440 is an abundant number, since it is smaller than the sum of its proper divisors (389948834720).

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

211132403440 is a wasteful number, since it uses less digits than its factorization.

211132403440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2834799 (or 2834786 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 211132403440 its reverse (44304231112), we get a palindrome (255436634552).

The spelling of 211132403440 in words is "two hundred eleven billion, one hundred thirty-two million, four hundred three thousand, four hundred forty".