31300001131 has 8 divisors (see below), whose sum is σ = 35773117184. Its totient is φ = 26827306920.

The previous prime is 31300001111. The next prime is 31300001171. The reversal of 31300001131 is 13110000313.

It is a happy number.

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 31300001131 - 2²³ = 31291612523 is a prime.

It is a super-2 number, since 2×31300001131² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31300001111) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 73876 + ... + 260878.

It is an arithmetic number, because the mean of its divisors is an integer number (4471639648).

Almost surely, 2^31300001131 is an apocalyptic number.

31300001131 is a deficient number, since it is larger than the sum of its proper divisors (4473116053).

31300001131 is a wasteful number, since it uses less digits than its factorization.

31300001131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210921.

The product of its (nonzero) digits is 27, while the sum is 13.

Adding to 31300001131 its reverse (13110000313), we get a palindrome (44410001444).

The spelling of 31300001131 in words is "thirty-one billion, three hundred million, one thousand, one hundred thirty-one".