1210421304031 has 4 divisors (see below), whose sum is σ = 1211193750592. Its totient is φ = 1209648857472.

The previous prime is 1210421304013. The next prime is 1210421304041. The reversal of 1210421304031 is 1304031240121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1210421304031 - 2⁹ = 1210421303519 is a prime.

It is a super-2 number, since 2×1210421304031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1210421303993 and 1210421304011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210421304041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386220930 + ... + 386224063.

It is an arithmetic number, because the mean of its divisors is an integer number (302798437648).

Almost surely, 2^{1210421304031} is an apocalyptic number.

1210421304031 is a deficient number, since it is larger than the sum of its proper divisors (772446561).

1210421304031 is an equidigital number, since it uses as much as digits as its factorization.

1210421304031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772446560.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1210421304031 its reverse (1304031240121), we get a palindrome (2514452544152).

The spelling of 1210421304031 in words is "one trillion, two hundred ten billion, four hundred twenty-one million, three hundred four thousand, thirty-one".