31143321213002 has 16 divisors (see below), whose sum is σ = 46910862218880. Its totient is φ = 15506368307808.

The previous prime is 31143321212977. The next prime is 31143321213007. The reversal of 31143321213002 is 20031212334113.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31143321213007) 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, 71663573 + ... + 72096839.

It is an arithmetic number, because the mean of its divisors is an integer number (2931928888680).

Almost surely, 2^{31143321213002} is an apocalyptic number.

31143321213002 is a deficient number, since it is larger than the sum of its proper divisors (15767541005878).

31143321213002 is a wasteful number, since it uses less digits than its factorization.

31143321213002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583885.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 31143321213002 its reverse (20031212334113), we get a palindrome (51174533547115).

The spelling of 31143321213002 in words is "thirty-one trillion, one hundred forty-three billion, three hundred twenty-one million, two hundred thirteen thousand, two".