1231210031308 has 12 divisors (see below), whose sum is σ = 2186776026232. Its totient is φ = 606416880960.

The previous prime is 1231210031287. The next prime is 1231210031333. The reversal of 1231210031308 is 8031300121321.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2297033373 + ... + 2297033908.

Almost surely, 2^{1231210031308} is an apocalyptic number.

It is an amenable number.

1231210031308 is a deficient number, since it is larger than the sum of its proper divisors (955565994924).

1231210031308 is a wasteful number, since it uses less digits than its factorization.

1231210031308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4594067352 (or 4594067350 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 1231210031308 its reverse (8031300121321), we get a palindrome (9262510152629).

The spelling of 1231210031308 in words is "one trillion, two hundred thirty-one billion, two hundred ten million, thirty-one thousand, three hundred eight".