213102120044131 has 12 divisors (see below), whose sum is σ = 220704755691472. Its totient is φ = 205752936390624.

The previous prime is 213102120044083. The next prime is 213102120044141. The reversal of 213102120044131 is 131440021201312.

It is not a de Polignac number, because 213102120044131 - 2²¹ = 213102117946979 is a prime.

It is a super-2 number, since 2×213102120044131² (a number of 29 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 = 213102120044096 and 213102120044105.

It is not an unprimeable number, because it can be changed into a prime (213102120044141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 344646610 + ... + 345264376.

Almost surely, 2^{213102120044131} is an apocalyptic number.

213102120044131 is a deficient number, since it is larger than the sum of its proper divisors (7602635647341).

213102120044131 is an equidigital number, since it uses as much as digits as its factorization.

213102120044131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027998 (or 1027969 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 213102120044131 its reverse (131440021201312), we get a palindrome (344542141245443).

The spelling of 213102120044131 in words is "two hundred thirteen trillion, one hundred two billion, one hundred twenty million, forty-four thousand, one hundred thirty-one".