1211230031104 has 36 divisors (see below), whose sum is σ = 2417872749376. Its totient is φ = 605578931712.

The previous prime is 1211230031087. The next prime is 1211230031107. The reversal of 1211230031104 is 4011300321121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211230031107) 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, 4456297 + ... + 4720279.

Almost surely, 2^{1211230031104} is an apocalyptic number.

It is an amenable number.

1211230031104 is a deficient number, since it is larger than the sum of its proper divisors (1206642718272).

1211230031104 is an equidigital number, since it uses as much as digits as its factorization.

1211230031104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281922 (or 281908 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1211230031104 its reverse (4011300321121), we get a palindrome (5222530352225).

The spelling of 1211230031104 in words is "one trillion, two hundred eleven billion, two hundred thirty million, thirty-one thousand, one hundred four".