31441221101 has 4 divisors (see below), whose sum is σ = 31634112192. Its totient is φ = 31248330012.

The previous prime is 31441221067. The next prime is 31441221103. The reversal of 31441221101 is 10112214413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31441221101 - 2¹⁰ = 31441220077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31441221103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96445301 + ... + 96445626.

It is an arithmetic number, because the mean of its divisors is an integer number (7908528048).

Almost surely, 2^31441221101 is an apocalyptic number.

It is an amenable number.

31441221101 is a deficient number, since it is larger than the sum of its proper divisors (192891091).

31441221101 is a wasteful number, since it uses less digits than its factorization.

31441221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192891090.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 31441221101 its reverse (10112214413), we get a palindrome (41553435514).

The spelling of 31441221101 in words is "thirty-one billion, four hundred forty-one million, two hundred twenty-one thousand, one hundred one".