211431301101 has 12 divisors (see below), whose sum is σ = 305404905312. Its totient is φ = 140952291336.

The previous prime is 211431301099. The next prime is 211431301117. The reversal of 211431301101 is 101103134112.

It is a happy number.

It is not a de Polignac number, because 211431301101 - 2¹ = 211431301099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211431301201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 946560 + ... + 1148406.

It is an arithmetic number, because the mean of its divisors is an integer number (25450408776).

Almost surely, 2^211431301101 is an apocalyptic number.

It is an amenable number.

211431301101 is a deficient number, since it is larger than the sum of its proper divisors (93973604211).

211431301101 is a wasteful number, since it uses less digits than its factorization.

211431301101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318240 (or 318237 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 211431301101 its reverse (101103134112), we get a palindrome (312534435213).

The spelling of 211431301101 in words is "two hundred eleven billion, four hundred thirty-one million, three hundred one thousand, one hundred one".