131001031249 has 8 divisors (see below), whose sum is σ = 142922979648. Its totient is φ = 119081210160.

The previous prime is 131001031247. The next prime is 131001031267. The reversal of 131001031249 is 942130100131.

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

It is not a de Polignac number, because 131001031249 - 2¹ = 131001031247 is a prime.

It is a super-2 number, since 2×131001031249² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131001031247) 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, 401677 + ... + 650650.

It is an arithmetic number, because the mean of its divisors is an integer number (17865372456).

Almost surely, 2^131001031249 is an apocalyptic number.

It is an amenable number.

131001031249 is a deficient number, since it is larger than the sum of its proper divisors (11921948399).

131001031249 is a wasteful number, since it uses less digits than its factorization.

131001031249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063655.

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 131001031249 in words is "one hundred thirty-one billion, one million, thirty-one thousand, two hundred forty-nine".