31201331101 has 8 divisors (see below), whose sum is σ = 32482831320. Its totient is φ = 29933537088.

The previous prime is 31201331069. The next prime is 31201331107. The reversal of 31201331101 is 10113310213.

It can be written as a sum of positive squares in 4 ways, for example, as 54375876 + 31146955225 = 7374^2 + 176485^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31201331101 - 2⁵ = 31201331069 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 (31201331107) 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, 3421906 + ... + 3431011.

It is an arithmetic number, because the mean of its divisors is an integer number (4060353915).

Almost surely, 2^31201331101 is an apocalyptic number.

It is an amenable number.

31201331101 is a deficient number, since it is larger than the sum of its proper divisors (1281500219).

31201331101 is a wasteful number, since it uses less digits than its factorization.

31201331101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6853103.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 31201331101 its reverse (10113310213), we get a palindrome (41314641314).

The spelling of 31201331101 in words is "thirty-one billion, two hundred one million, three hundred thirty-one thousand, one hundred one".