2311121133120 has 56 divisors (see below), whose sum is σ = 7337809600704. Its totient is φ = 616298968576.

The previous prime is 2311121133103. The next prime is 2311121133143. The reversal of 2311121133120 is 213311211132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1203707964 + ... + 1203709883.

Almost surely, 2^{2311121133120} is an apocalyptic number.

2311121133120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311121133120 is an abundant number, since it is smaller than the sum of its proper divisors (5026688467584).

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

2311121133120 is a wasteful number, since it uses less digits than its factorization.

2311121133120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2407417867 (or 2407417857 counting only the distinct ones).

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

Adding to 2311121133120 its reverse (213311211132), we get a palindrome (2524432344252).

The spelling of 2311121133120 in words is "two trillion, three hundred eleven billion, one hundred twenty-one million, one hundred thirty-three thousand, one hundred twenty".