131143123210 has 32 divisors (see below), whose sum is σ = 257623172352. Its totient is φ = 47668822080.

The previous prime is 131143123157. The next prime is 131143123213. The reversal of 131143123210 is 12321341131.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (131143123213) 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, 25564 + ... + 512776.

It is an arithmetic number, because the mean of its divisors is an integer number (8050724136).

Almost surely, 2^131143123210 is an apocalyptic number.

131143123210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131143123210 is a deficient number, since it is larger than the sum of its proper divisors (126480049142).

131143123210 is a wasteful number, since it uses less digits than its factorization.

131143123210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489678.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 131143123210 its reverse (12321341131), we get a palindrome (143464464341).

The spelling of 131143123210 in words is "one hundred thirty-one billion, one hundred forty-three million, one hundred twenty-three thousand, two hundred ten".