1121231321130 has 64 divisors (see below), whose sum is σ = 2735291680128. Its totient is φ = 294069538560.

The previous prime is 1121231321117. The next prime is 1121231321137. The reversal of 1121231321130 is 311231321211.

It is a junction number, because it is equal to n+sod(n) for n = 1121231321097 and 1121231321106.

It is not an unprimeable number, because it can be changed into a prime (1121231321137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40313809 + ... + 40341611.

It is an arithmetic number, because the mean of its divisors is an integer number (42738932502).

Almost surely, 2^{1121231321130} is an apocalyptic number.

1121231321130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121231321130 is an abundant number, since it is smaller than the sum of its proper divisors (1614060358998).

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

1121231321130 is a wasteful number, since it uses less digits than its factorization.

1121231321130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49911.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1121231321130 its reverse (311231321211), we get a palindrome (1432462642341).

The spelling of 1121231321130 in words is "one trillion, one hundred twenty-one billion, two hundred thirty-one million, three hundred twenty-one thousand, one hundred thirty".