1231013121110 has 8 divisors (see below), whose sum is σ = 2215823618016. Its totient is φ = 492405248440.

The previous prime is 1231013121103. The next prime is 1231013121137. The reversal of 1231013121110 is 111213101321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61550656046 + ... + 61550656065.

It is an arithmetic number, because the mean of its divisors is an integer number (276977952252).

Almost surely, 2^{1231013121110} is an apocalyptic number.

1231013121110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231013121110 is a deficient number, since it is larger than the sum of its proper divisors (984810496906).

1231013121110 is a wasteful number, since it uses less digits than its factorization.

1231013121110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123101312118.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 1231013121110 its reverse (111213101321), we get a palindrome (1342226222431).

The spelling of 1231013121110 in words is "one trillion, two hundred thirty-one billion, thirteen million, one hundred twenty-one thousand, one hundred ten".