1231313132010 has 256 divisors, whose sum is σ = 3284558968320. Its totient is φ = 293491261440.

The previous prime is 1231313131991. The next prime is 1231313132011. The reversal of 1231313132010 is 102313131321.

It is a happy number.

It is a super-2 number, since 2×1231313132010² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1231313132011) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1736689536 + ... + 1736690244.

It is an arithmetic number, because the mean of its divisors is an integer number (12830308470).

Almost surely, 2^{1231313132010} is an apocalyptic number.

1231313132010 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 1231313132010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1642279484160).

1231313132010 is an abundant number, since it is smaller than the sum of its proper divisors (2053245836310).

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

1231313132010 is a wasteful number, since it uses less digits than its factorization.

1231313132010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1231313132010 its reverse (102313131321), we get a palindrome (1333626263331).

The spelling of 1231313132010 in words is "one trillion, two hundred thirty-one billion, three hundred thirteen million, one hundred thirty-two thousand, ten".