120781322 has 4 divisors (see below), whose sum is σ = 181171986. Its totient is φ = 60390660.

The previous prime is 120781307. The next prime is 120781343. The reversal of 120781322 is 223187021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 223187021 = 2143 ⋅104147.

It can be written as a sum of positive squares in only one way, i.e., 93103201 + 27678121 = 9649^2 + 5261^2 .

It is a junction number, because it is equal to n+sod(n) for n = 120781291 and 120781300.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30195329 + ... + 30195332.

Almost surely, 2^120781322 is an apocalyptic number.

120781322 is a deficient number, since it is larger than the sum of its proper divisors (60390664).

120781322 is an equidigital number, since it uses as much as digits as its factorization.

120781322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60390663.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 120781322 is about 10990.0555958557. The cubic root of 120781322 is about 494.3106030738.

The spelling of 120781322 in words is "one hundred twenty million, seven hundred eighty-one thousand, three hundred twenty-two".