1131213303120 has 160 divisors (see below), whose sum is σ = 3637418083200. Its totient is φ = 290473408512.

The previous prime is 1131213303107. The next prime is 1131213303133. The reversal of 1131213303120 is 213033121311.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1131213303107) and next prime (1131213303133).

It is a super-2 number, since 2×1131213303120² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2378211 + ... + 2813949.

It is an arithmetic number, because the mean of its divisors is an integer number (22733863020).

Almost surely, 2^{1131213303120} is an apocalyptic number.

1131213303120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1131213303120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1818709041600).

1131213303120 is an abundant number, since it is smaller than the sum of its proper divisors (2506204780080).

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

1131213303120 is a wasteful number, since it uses less digits than its factorization.

1131213303120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436157 (or 436151 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1131213303120 its reverse (213033121311), we get a palindrome (1344246424431).

The spelling of 1131213303120 in words is "one trillion, one hundred thirty-one billion, two hundred thirteen million, three hundred three thousand, one hundred twenty".