120631356 has 60 divisors (see below), whose sum is σ = 320118568. Its totient is φ = 39603168.

The previous prime is 120631351. The next prime is 120631363. The reversal of 120631356 is 653136021.

120631356 is a `hidden beast` number, since 1 + 20 + 631 + 3 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120631351) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18930 + ... + 24486.

Almost surely, 2^120631356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120631356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160059284).

120631356 is an abundant number, since it is smaller than the sum of its proper divisors (199487212).

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

120631356 is a wasteful number, since it uses less digits than its factorization.

120631356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5640 (or 5629 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 120631356 is about 10983.2306722567. The cubic root of 120631356 is about 494.1059343262.

Adding to 120631356 its reverse (653136021), we get a palindrome (773767377).

The spelling of 120631356 in words is "one hundred twenty million, six hundred thirty-one thousand, three hundred fifty-six".