131030230145 has 4 divisors (see below), whose sum is σ = 157236276180. Its totient is φ = 104824184112.

The previous prime is 131030230103. The next prime is 131030230187. The reversal of 131030230145 is 541032030131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541032030131 = 59 ⋅9170034409.

It is an interprime number because it is at equal distance from previous prime (131030230103) and next prime (131030230187).

It can be written as a sum of positive squares in 2 ways, for example, as 87260569201 + 43769660944 = 295399^2 + 209212^2 .

It is a cyclic number.

It is not a de Polignac number, because 131030230145 - 2¹⁸ = 131029968001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131030230145.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13103023010 + ... + 13103023019.

It is an arithmetic number, because the mean of its divisors is an integer number (39309069045).

Almost surely, 2^131030230145 is an apocalyptic number.

It is an amenable number.

131030230145 is a deficient number, since it is larger than the sum of its proper divisors (26206046035).

131030230145 is an equidigital number, since it uses as much as digits as its factorization.

131030230145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26206046034.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 131030230145 its reverse (541032030131), we get a palindrome (672062260276).

The spelling of 131030230145 in words is "one hundred thirty-one billion, thirty million, two hundred thirty thousand, one hundred forty-five".