1121231011230 has 256 divisors, whose sum is σ = 3300582297600. Its totient is φ = 268587601920.

The previous prime is 1121231011211. The next prime is 1121231011259. The reversal of 1121231011230 is 321101321211.

1121231011230 is a `hidden beast` number, since 1 + 1 + 212 + 310 + 112 + 30 = 666.

It is a super-2 number, since 2×1121231011230² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 207134004 + ... + 207139416.

It is an arithmetic number, because the mean of its divisors is an integer number (12892899600).

Almost surely, 2^{1121231011230} is an apocalyptic number.

1121231011230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121231011230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1650291148800).

1121231011230 is an abundant number, since it is smaller than the sum of its proper divisors (2179351286370).

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

1121231011230 is a wasteful number, since it uses less digits than its factorization.

1121231011230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6256 (or 6250 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1121231011230 its reverse (321101321211), we get a palindrome (1442332332441).

The spelling of 1121231011230 in words is "one trillion, one hundred twenty-one billion, two hundred thirty-one million, eleven thousand, two hundred thirty".