211021032031 has 4 divisors (see below), whose sum is σ = 211766689672. Its totient is φ = 210275374392.

The previous prime is 211021031941. The next prime is 211021032073. The reversal of 211021032031 is 130230120112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211021032031 - 2¹¹ = 211021029983 is a prime.

It is a super-2 number, since 2×211021032031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211021031996 and 211021032014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211021032091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372828396 + ... + 372828961.

It is an arithmetic number, because the mean of its divisors is an integer number (52941672418).

Almost surely, 2^211021032031 is an apocalyptic number.

211021032031 is a deficient number, since it is larger than the sum of its proper divisors (745657641).

211021032031 is an equidigital number, since it uses as much as digits as its factorization.

211021032031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745657640.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 211021032031 its reverse (130230120112), we get a palindrome (341251152143).

The spelling of 211021032031 in words is "two hundred eleven billion, twenty-one million, thirty-two thousand, thirty-one".