31230143300131 has 16 divisors (see below), whose sum is σ = 33312308601600. Its totient is φ = 29214754275168.

The previous prime is 31230143299981. The next prime is 31230143300149. The reversal of 31230143300131 is 13100334103213.

It is not a de Polignac number, because 31230143300131 - 2¹⁵ = 31230143267363 is a prime.

It is a super-2 number, since 2×31230143300131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31230143300096 and 31230143300105.

It is not an unprimeable number, because it can be changed into a prime (31230143100131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72685636 + ... + 73114033.

It is an arithmetic number, because the mean of its divisors is an integer number (2082019287600).

Almost surely, 2^{31230143300131} is an apocalyptic number.

31230143300131 is a deficient number, since it is larger than the sum of its proper divisors (2082165301469).

31230143300131 is a wasteful number, since it uses less digits than its factorization.

31230143300131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145799898.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31230143300131 its reverse (13100334103213), we get a palindrome (44330477403344).

The spelling of 31230143300131 in words is "thirty-one trillion, two hundred thirty billion, one hundred forty-three million, three hundred thousand, one hundred thirty-one".