313011122 has 4 divisors (see below), whose sum is σ = 469516686. Its totient is φ = 156505560.

The previous prime is 313011119. The next prime is 313011137. The reversal of 313011122 is 221110313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221110313 = 17 ⋅13006489.

It can be written as a sum of positive squares in only one way, i.e., 178195801 + 134815321 = 13349^2 + 11611^2 .

It is a junction number, because it is equal to n+sod(n) for n = 313011097 and 313011106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78252779 + ... + 78252782.

Almost surely, 2^313011122 is an apocalyptic number.

313011122 is a deficient number, since it is larger than the sum of its proper divisors (156505564).

313011122 is a wasteful number, since it uses less digits than its factorization.

313011122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156505563.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 313011122 is about 17692.1203364662. The cubic root of 313011122 is about 678.9741755734.

Adding to 313011122 its reverse (221110313), we get a palindrome (534121435).

It can be divided in two parts, 31301 and 1122, that added together give a palindrome (32423).

The spelling of 313011122 in words is "three hundred thirteen million, eleven thousand, one hundred twenty-two".