120431106 has 24 divisors (see below), whose sum is σ = 263247660. Its totient is φ = 39787776.

The previous prime is 120431071. The next prime is 120431117. The reversal of 120431106 is 601134021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 110565225 + 9865881 = 10515^2 + 3141^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27571 + ... + 31638.

Almost surely, 2^120431106 is an apocalyptic number.

120431106 is an abundant number, since it is smaller than the sum of its proper divisors (142816554).

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

120431106 is a wasteful number, since it uses less digits than its factorization.

120431106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59330 (or 59327 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 120431106 is about 10974.1107156799. The cubic root of 120431106 is about 493.8323749546.

Adding to 120431106 its reverse (601134021), we get a palindrome (721565127).

The spelling of 120431106 in words is "one hundred twenty million, four hundred thirty-one thousand, one hundred six".