31201143001 has 8 divisors (see below), whose sum is σ = 37756005120. Its totient is φ = 25170669888.

The previous prime is 31201142993. The next prime is 31201143013. The reversal of 31201143001 is 10034110213.

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

It is not a de Polignac number, because 31201143001 - 2³ = 31201142993 is a prime.

It is a super-2 number, since 2×31201143001² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31201143041) 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, 131097121 + ... + 131097358.

It is an arithmetic number, because the mean of its divisors is an integer number (4719500640).

Almost surely, 2^31201143001 is an apocalyptic number.

It is an amenable number.

31201143001 is a deficient number, since it is larger than the sum of its proper divisors (6554862119).

31201143001 is a wasteful number, since it uses less digits than its factorization.

31201143001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262194503.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 31201143001 its reverse (10034110213), we get a palindrome (41235253214).

The spelling of 31201143001 in words is "thirty-one billion, two hundred one million, one hundred forty-three thousand, one".