211432241420 has 24 divisors (see below), whose sum is σ = 444090263904. Its totient is φ = 84557171456.

The previous prime is 211432241359. The next prime is 211432241513. The reversal of 211432241420 is 24142234112.

It is a self number, because there is not a number n which added to its sum of digits gives 211432241420.

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, 872264 + ... + 1087983.

It is an arithmetic number, because the mean of its divisors is an integer number (18503760996).

Almost surely, 2^211432241420 is an apocalyptic number.

211432241420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211432241420 is an abundant number, since it is smaller than the sum of its proper divisors (232658022484).

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

211432241420 is a wasteful number, since it uses less digits than its factorization.

211432241420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965649 (or 1965647 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 211432241420 its reverse (24142234112), we get a palindrome (235574475532).

The spelling of 211432241420 in words is "two hundred eleven billion, four hundred thirty-two million, two hundred forty-one thousand, four hundred twenty".