31132223002 has 16 divisors (see below), whose sum is σ = 47592129312. Its totient is φ = 15268336720.

The previous prime is 31132222993. The next prime is 31132223009. The reversal of 31132223002 is 20032223113.

It is not an unprimeable number, because it can be changed into a prime (31132223009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381177 + ... + 455587.

It is an arithmetic number, because the mean of its divisors is an integer number (2974508082).

Almost surely, 2^31132223002 is an apocalyptic number.

31132223002 is a deficient number, since it is larger than the sum of its proper divisors (16459906310).

31132223002 is a wasteful number, since it uses less digits than its factorization.

31132223002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78413.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 31132223002 its reverse (20032223113), we get a palindrome (51164446115).

The spelling of 31132223002 in words is "thirty-one billion, one hundred thirty-two million, two hundred twenty-three thousand, two".