31441220202 has 32 divisors (see below), whose sum is σ = 74990241792. Its totient is φ = 8592631344.

The previous prime is 31441220171. The next prime is 31441220257. The reversal of 31441220202 is 20202214413.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16272958 + ... + 16274889.

It is an arithmetic number, because the mean of its divisors is an integer number (2343445056).

Almost surely, 2^31441220202 is an apocalyptic number.

31441220202 is an abundant number, since it is smaller than the sum of its proper divisors (43549021590).

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

31441220202 is a wasteful number, since it uses less digits than its factorization.

31441220202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32547882.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 31441220202 its reverse (20202214413), we get a palindrome (51643434615).

The spelling of 31441220202 in words is "thirty-one billion, four hundred forty-one million, two hundred twenty thousand, two hundred two".