211402131121011 has 4 divisors (see below), whose sum is σ = 281869508161352. Its totient is φ = 140934754080672.

The previous prime is 211402131120967. The next prime is 211402131121021. The reversal of 211402131121011 is 110121131204112.

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

It is not a de Polignac number, because 211402131121011 - 2²⁷ = 211401996903283 is a prime.

It is a super-2 number, since 2×211402131121011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211402131121021) 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, 35233688520166 + ... + 35233688520171.

It is an arithmetic number, because the mean of its divisors is an integer number (70467377040338).

Almost surely, 2^{211402131121011} is an apocalyptic number.

211402131121011 is a deficient number, since it is larger than the sum of its proper divisors (70467377040341).

211402131121011 is an equidigital number, since it uses as much as digits as its factorization.

211402131121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70467377040340.

The product of its (nonzero) digits is 96, while the sum is 21.

Adding to 211402131121011 its reverse (110121131204112), we get a palindrome (321523262325123).

The spelling of 211402131121011 in words is "two hundred eleven trillion, four hundred two billion, one hundred thirty-one million, one hundred twenty-one thousand, eleven".