145230230213031 has 4 divisors (see below), whose sum is σ = 193640306950712. Its totient is φ = 96820153475352.

The previous prime is 145230230213017. The next prime is 145230230213041. The reversal of 145230230213031 is 130312032032541.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 145230230213031 - 2¹⁰ = 145230230212007 is a prime.

It is a super-4 number, since 4×145230230213031⁴ (a number of 58 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145230230213031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145230230213041) 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 3 ways as a sum of consecutive naturals, for example, 24205038368836 + ... + 24205038368841.

It is an arithmetic number, because the mean of its divisors is an integer number (48410076737678).

Almost surely, 2^{145230230213031} is an apocalyptic number.

145230230213031 is a deficient number, since it is larger than the sum of its proper divisors (48410076737681).

145230230213031 is an equidigital number, since it uses as much as digits as its factorization.

145230230213031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48410076737680.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 145230230213031 its reverse (130312032032541), we get a palindrome (275542262245572).

The spelling of 145230230213031 in words is "one hundred forty-five trillion, two hundred thirty billion, two hundred thirty million, two hundred thirteen thousand, thirty-one".