211020112131 has 16 divisors (see below), whose sum is σ = 283119403008. Its totient is φ = 139801939200.

The previous prime is 211020112099. The next prime is 211020112169. The reversal of 211020112131 is 131211020112.

It is not a de Polignac number, because 211020112131 - 2⁵ = 211020112099 is a prime.

It is a super-2 number, since 2×211020112131² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211020112131.

It is not an unprimeable number, because it can be changed into a prime (211020112031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382035 + ... + 753651.

It is an arithmetic number, because the mean of its divisors is an integer number (17694962688).

Almost surely, 2^211020112131 is an apocalyptic number.

211020112131 is a deficient number, since it is larger than the sum of its proper divisors (72099290877).

211020112131 is a wasteful number, since it uses less digits than its factorization.

211020112131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372802.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 211020112131 its reverse (131211020112), we get a palindrome (342231132243).

It can be divided in two parts, 211020112 and 131, that multiplied together give a palindrome (27643634672).

The spelling of 211020112131 in words is "two hundred eleven billion, twenty million, one hundred twelve thousand, one hundred thirty-one".