31012314202 has 4 divisors (see below), whose sum is σ = 46518471306. Its totient is φ = 15506157100.

The previous prime is 31012314199. The next prime is 31012314211. The reversal of 31012314202 is 20241321013.

It is a happy number.

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., 18468538201 + 12543776001 = 135899^2 + 111999^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31012314202.

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, 7753078549 + ... + 7753078552.

Almost surely, 2^31012314202 is an apocalyptic number.

31012314202 is a deficient number, since it is larger than the sum of its proper divisors (15506157104).

31012314202 is a wasteful number, since it uses less digits than its factorization.

31012314202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15506157103.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 31012314202 its reverse (20241321013), we get a palindrome (51253635215).

The spelling of 31012314202 in words is "thirty-one billion, twelve million, three hundred fourteen thousand, two hundred two".