1240323122 has 4 divisors (see below), whose sum is σ = 1860484686. Its totient is φ = 620161560.

The previous prime is 1240323121. The next prime is 1240323137. The reversal of 1240323122 is 2213230421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1198475161 + 41847961 = 34619^2 + 6469^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1240323094 and 1240323103.

It is not an unprimeable number, because it can be changed into a prime (1240323121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310080779 + ... + 310080782.

Almost surely, 2^1240323122 is an apocalyptic number.

1240323122 is a deficient number, since it is larger than the sum of its proper divisors (620161564).

1240323122 is an equidigital number, since it uses as much as digits as its factorization.

1240323122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620161563.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1240323122 is about 35218.2214485627. The cubic root of 1240323122 is about 1074.4303806111.

Adding to 1240323122 its reverse (2213230421), we get a palindrome (3453553543).

The spelling of 1240323122 in words is "one billion, two hundred forty million, three hundred twenty-three thousand, one hundred twenty-two".