1231345243210 has 32 divisors (see below), whose sum is σ = 2404038187152. Its totient is φ = 452258795520.

The previous prime is 1231345243199. The next prime is 1231345243211. The reversal of 1231345243210 is 123425431321.

It can be written as a sum of positive squares in 8 ways, for example, as 555935763321 + 675409479889 = 745611^2 + 821833^2 .

It is a super-2 number, since 2×1231345243210² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1231345243211) 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, 88324827 + ... + 88338766.

Almost surely, 2^{1231345243210} is an apocalyptic number.

1231345243210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231345243210 is a deficient number, since it is larger than the sum of its proper divisors (1172692943942).

1231345243210 is a wasteful number, since it uses less digits than its factorization.

1231345243210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176663658.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 1231345243210 in words is "one trillion, two hundred thirty-one billion, three hundred forty-five million, two hundred forty-three thousand, two hundred ten".