1213243210031 has 8 divisors (see below), whose sum is σ = 1218396710784. Its totient is φ = 1208090695680.

The previous prime is 1213243210021. The next prime is 1213243210051. The reversal of 1213243210031 is 1300123423121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1213243210031 is a prime.

It is a super-2 number, since 2×1213243210031² (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 = 1213243209979 and 1213243210006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213243210021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2273090 + ... + 2755616.

It is an arithmetic number, because the mean of its divisors is an integer number (152299588848).

Almost surely, 2^{1213243210031} is an apocalyptic number.

1213243210031 is a deficient number, since it is larger than the sum of its proper divisors (5153500753).

1213243210031 is a wasteful number, since it uses less digits than its factorization.

1213243210031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493201.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1213243210031 its reverse (1300123423121), we get a palindrome (2513366633152).

The spelling of 1213243210031 in words is "one trillion, two hundred thirteen billion, two hundred forty-three million, two hundred ten thousand, thirty-one".