120311133140 has 96 divisors (see below), whose sum is σ = 281897231616. Its totient is φ = 42759741440.

The previous prime is 120311133101. The next prime is 120311133179. The reversal of 120311133140 is 41331113021.

It is an interprime number because it is at equal distance from previous prime (120311133101) and next prime (120311133179).

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 3046964 + ... + 3086196.

It is an arithmetic number, because the mean of its divisors is an integer number (2936429496).

Almost surely, 2^120311133140 is an apocalyptic number.

120311133140 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 120311133140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140948615808).

120311133140 is an abundant number, since it is smaller than the sum of its proper divisors (161586098476).

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

120311133140 is a wasteful number, since it uses less digits than its factorization.

120311133140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39569 (or 39567 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 120311133140 its reverse (41331113021), we get a palindrome (161642246161).

The spelling of 120311133140 in words is "one hundred twenty billion, three hundred eleven million, one hundred thirty-three thousand, one hundred forty".