1210202313231 has 16 divisors (see below), whose sum is σ = 1677630302208. Its totient is φ = 775375339200.

The previous prime is 1210202313227. The next prime is 1210202313233. The reversal of 1210202313231 is 1323132020121.

It is not a de Polignac number, because 1210202313231 - 2² = 1210202313227 is a prime.

It is a super-2 number, since 2×1210202313231² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1210202313198 and 1210202313207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210202313233) 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, 73417455 + ... + 73433936.

It is an arithmetic number, because the mean of its divisors is an integer number (104851893888).

Almost surely, 2^{1210202313231} is an apocalyptic number.

1210202313231 is a deficient number, since it is larger than the sum of its proper divisors (467427988977).

1210202313231 is a wasteful number, since it uses less digits than its factorization.

1210202313231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146851502.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1210202313231 its reverse (1323132020121), we get a palindrome (2533334333352).

The spelling of 1210202313231 in words is "one trillion, two hundred ten billion, two hundred two million, three hundred thirteen thousand, two hundred thirty-one".