31143002031322 has 4 divisors (see below), whose sum is σ = 46714503046986. Its totient is φ = 15571501015660.

The previous prime is 31143002031319. The next prime is 31143002031353. The reversal of 31143002031322 is 22313020034113.

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., 22333081672521 + 8809920358801 = 4725789^2 + 2968151^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7785750507829 + ... + 7785750507832.

Almost surely, 2^{31143002031322} is an apocalyptic number.

31143002031322 is a deficient number, since it is larger than the sum of its proper divisors (15571501015664).

31143002031322 is a wasteful number, since it uses less digits than its factorization.

31143002031322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15571501015663.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31143002031322 its reverse (22313020034113), we get a palindrome (53456022065435).

The spelling of 31143002031322 in words is "thirty-one trillion, one hundred forty-three billion, two million, thirty-one thousand, three hundred twenty-two".