31100124143 has 32 divisors (see below), whose sum is σ = 35515763712. Its totient is φ = 26981539200.

The previous prime is 31100124131. The next prime is 31100124151. The reversal of 31100124143 is 34142100113.

It is a de Polignac number, because none of the positive numbers 2^k-31100124143 is a prime.

It is a super-2 number, since 2×31100124143² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31100124043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22519313 + ... + 22520693.

It is an arithmetic number, because the mean of its divisors is an integer number (1109867616).

Almost surely, 2^31100124143 is an apocalyptic number.

31100124143 is a deficient number, since it is larger than the sum of its proper divisors (4415639569).

31100124143 is a wasteful number, since it uses less digits than its factorization.

31100124143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2495.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31100124143 its reverse (34142100113), we get a palindrome (65242224256).

The spelling of 31100124143 in words is "thirty-one billion, one hundred million, one hundred twenty-four thousand, one hundred forty-three".