120431286 has 48 divisors (see below), whose sum is σ = 271724544. Its totient is φ = 39977064.

The previous prime is 120431279. The next prime is 120431293. The reversal of 120431286 is 682134021.

It is an interprime number because it is at equal distance from previous prime (120431279) and next prime (120431293).

It is a super-2 number, since 2×120431286² = 29007389295227592, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 185815 + ... + 186461.

It is an arithmetic number, because the mean of its divisors is an integer number (5660928).

Almost surely, 2^120431286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120431286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135862272).

120431286 is an abundant number, since it is smaller than the sum of its proper divisors (151293258).

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

120431286 is an equidigital number, since it uses as much as digits as its factorization.

120431286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047 (or 1035 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 120431286 is about 10974.1189167969. The cubic root of 120431286 is about 493.8326209868.

The spelling of 120431286 in words is "one hundred twenty million, four hundred thirty-one thousand, two hundred eighty-six".