31143060650 has 48 divisors (see below), whose sum is σ = 62873309184. Its totient is φ = 11408402880.

The previous prime is 31143060649. The next prime is 31143060659. The reversal of 31143060650 is 5606034113.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31143060659) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106082 + ... + 271181.

It is an arithmetic number, because the mean of its divisors is an integer number (1309860608).

Almost surely, 2^31143060650 is an apocalyptic number.

31143060650 is an abundant number, since it is smaller than the sum of its proper divisors (31730248534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31143060650 is a wasteful number, since it uses less digits than its factorization.

31143060650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377415 (or 377410 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 31143060650 its reverse (5606034113), we get a palindrome (36749094763).

The spelling of 31143060650 in words is "thirty-one billion, one hundred forty-three million, sixty thousand, six hundred fifty".