1231320200110 has 256 divisors, whose sum is σ = 3069358645248. Its totient is φ = 343282176000.

The previous prime is 1231320200093. The next prime is 1231320200129. The reversal of 1231320200110 is 110020231321.

It is a super-2 number, since 2×1231320200110² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 47504514 + ... + 47530426.

It is an arithmetic number, because the mean of its divisors is an integer number (11989682208).

Almost surely, 2^{1231320200110} is an apocalyptic number.

1231320200110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231320200110 is an abundant number, since it is smaller than the sum of its proper divisors (1838038445138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231320200110 is a wasteful number, since it uses less digits than its factorization.

1231320200110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26099.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1231320200110 its reverse (110020231321), we get a palindrome (1341340431431).

The spelling of 1231320200110 in words is "one trillion, two hundred thirty-one billion, three hundred twenty million, two hundred thousand, one hundred ten".