213131110043401 has 32 divisors (see below), whose sum is σ = 243790924382208. Its totient is φ = 184434217323840.

The previous prime is 213131110043387. The next prime is 213131110043407. The reversal of 213131110043401 is 104340011131312.

213131110043401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213131110043401 - 2⁹ = 213131110042889 is a prime.

It is a super-2 number, since 2×213131110043401² (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 (213131110043407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157128640 + ... + 158479246.

It is an arithmetic number, because the mean of its divisors is an integer number (7618466386944).

Almost surely, 2^{213131110043401} is an apocalyptic number.

It is an amenable number.

213131110043401 is a deficient number, since it is larger than the sum of its proper divisors (30659814338807).

213131110043401 is a wasteful number, since it uses less digits than its factorization.

213131110043401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353661.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 213131110043401 its reverse (104340011131312), we get a palindrome (317471121174713).

The spelling of 213131110043401 in words is "two hundred thirteen trillion, one hundred thirty-one billion, one hundred ten million, forty-three thousand, four hundred one".