211421010131 has 4 divisors (see below), whose sum is σ = 211436263752. Its totient is φ = 211405756512.

The previous prime is 211421010127. The next prime is 211421010179. The reversal of 211421010131 is 131010124112.

211421010131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 211421010131 - 2² = 211421010127 is a prime.

It is a super-2 number, since 2×211421010131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211421090131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7606001 + ... + 7633746.

It is an arithmetic number, because the mean of its divisors is an integer number (52859065938).

Almost surely, 2^211421010131 is an apocalyptic number.

211421010131 is a deficient number, since it is larger than the sum of its proper divisors (15253621).

211421010131 is a wasteful number, since it uses less digits than its factorization.

211421010131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15253620.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 211421010131 its reverse (131010124112), we get a palindrome (342431134243).

The spelling of 211421010131 in words is "two hundred eleven billion, four hundred twenty-one million, ten thousand, one hundred thirty-one".