211020113232 has 30 divisors (see below), whose sum is σ = 590563233962. Its totient is φ = 70340037696.

The previous prime is 211020113219. The next prime is 211020113233. The reversal of 211020113232 is 232311020112.

It can be written as a sum of positive squares in only one way, i.e., 171972772416 + 39047340816 = 414696^2 + 197604^2 .

It is a super-2 number, since 2×211020113232² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211020113233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 732708583 + ... + 732708870.

Almost surely, 2^211020113232 is an apocalyptic number.

It is an amenable number.

211020113232 is an abundant number, since it is smaller than the sum of its proper divisors (379543120730).

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

211020113232 is a wasteful number, since it uses less digits than its factorization.

211020113232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465417467 (or 1465417458 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 211020113232 its reverse (232311020112), we get a palindrome (443331133344).

The spelling of 211020113232 in words is "two hundred eleven billion, twenty million, one hundred thirteen thousand, two hundred thirty-two".