313012022242 has 4 divisors (see below), whose sum is σ = 469518033366. Its totient is φ = 156506011120.

The previous prime is 313012022227. The next prime is 313012022293. The reversal of 313012022242 is 242220210313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242220210313 = 2341 ⋅103468693.

It can be written as a sum of positive squares in only one way, i.e., 235660731601 + 77351290641 = 485449^2 + 278121^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78253005559 + ... + 78253005562.

Almost surely, 2^313012022242 is an apocalyptic number.

313012022242 is a deficient number, since it is larger than the sum of its proper divisors (156506011124).

313012022242 is a wasteful number, since it uses less digits than its factorization.

313012022242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156506011123.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 313012022242 its reverse (242220210313), we get a palindrome (555232232555).

The spelling of 313012022242 in words is "three hundred thirteen billion, twelve million, twenty-two thousand, two hundred forty-two".