1231032012210 has 576 divisors, whose sum is σ = 4511058687360. Its totient is φ = 236117306880.

The previous prime is 1231032012191. The next prime is 1231032012269. The reversal of 1231032012210 is 122102301321.

1231032012210 is a `hidden beast` number, since 1 + 2 + 310 + 320 + 1 + 22 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 24569544 + ... + 24619596.

It is an arithmetic number, because the mean of its divisors is an integer number (7831699110).

Almost surely, 2^{1231032012210} is an apocalyptic number.

1231032012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1231032012210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2255529343680).

1231032012210 is an abundant number, since it is smaller than the sum of its proper divisors (3280026675150).

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

1231032012210 is a wasteful number, since it uses less digits than its factorization.

1231032012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50120 (or 50094 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1231032012210 its reverse (122102301321), we get a palindrome (1353134313531).

The spelling of 1231032012210 in words is "one trillion, two hundred thirty-one billion, thirty-two million, twelve thousand, two hundred ten".