1302012242 has 4 divisors (see below), whose sum is σ = 1953018366. Its totient is φ = 651006120.

The previous prime is 1302012241. The next prime is 1302012253. The reversal of 1302012242 is 2422102031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2422102031 = 227 ⋅10670053.

It can be written as a sum of positive squares in only one way, i.e., 1034329921 + 267682321 = 32161^2 + 16361^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1302012242.

It is not an unprimeable number, because it can be changed into a prime (1302012241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325503059 + ... + 325503062.

Almost surely, 2^1302012242 is an apocalyptic number.

1302012242 is a deficient number, since it is larger than the sum of its proper divisors (651006124).

1302012242 is an equidigital number, since it uses as much as digits as its factorization.

1302012242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651006123.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1302012242 is about 36083.4067404950. The cubic root of 1302012242 is about 1091.9557072787.

Adding to 1302012242 its reverse (2422102031), we get a palindrome (3724114273).

The spelling of 1302012242 in words is "one billion, three hundred two million, twelve thousand, two hundred forty-two".