1131213020244 has 48 divisors (see below), whose sum is σ = 2648761492608. Its totient is φ = 375748359808.

The previous prime is 1131213020159. The next prime is 1131213020303. The reversal of 1131213020244 is 4420203121311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10991794 + ... + 11094230.

It is an arithmetic number, because the mean of its divisors is an integer number (55182531096).

Almost surely, 2^{1131213020244} is an apocalyptic number.

It is an amenable number.

1131213020244 is an abundant number, since it is smaller than the sum of its proper divisors (1517548472364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131213020244 is a wasteful number, since it uses less digits than its factorization.

1131213020244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105664 (or 105662 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1131213020244 its reverse (4420203121311), we get a palindrome (5551416141555).

The spelling of 1131213020244 in words is "one trillion, one hundred thirty-one billion, two hundred thirteen million, twenty thousand, two hundred forty-four".