31220201303102 has 64 divisors (see below), whose sum is σ = 55344703389696. Its totient is φ = 12925537822080.

The previous prime is 31220201303087. The next prime is 31220201303107. The reversal of 31220201303102 is 20130310202213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31220201303107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1139118683 + ... + 1139146089.

It is an arithmetic number, because the mean of its divisors is an integer number (864760990464).

Almost surely, 2^{31220201303102} is an apocalyptic number.

31220201303102 is a deficient number, since it is larger than the sum of its proper divisors (24124502086594).

31220201303102 is a wasteful number, since it uses less digits than its factorization.

31220201303102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32001.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31220201303102 its reverse (20130310202213), we get a palindrome (51350511505315).

The spelling of 31220201303102 in words is "thirty-one trillion, two hundred twenty billion, two hundred one million, three hundred three thousand, one hundred two".