20145430023 has 8 divisors (see below), whose sum is σ = 26861483136. Its totient is φ = 13429831800.

The previous prime is 20145430013. The next prime is 20145430033. The reversal of 20145430023 is 32003454102.

It is an interprime number because it is at equal distance from previous prime (20145430013) and next prime (20145430033).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20145430023 - 2⁹ = 20145429511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20145429975 and 20145430002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20145430013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8328 + ... + 200898.

It is an arithmetic number, because the mean of its divisors is an integer number (3357685392).

Almost surely, 2^20145430023 is an apocalyptic number.

20145430023 is a deficient number, since it is larger than the sum of its proper divisors (6716053113).

20145430023 is a wasteful number, since it uses less digits than its factorization.

20145430023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227445.

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 20145430023 its reverse (32003454102), we get a palindrome (52148884125).

The spelling of 20145430023 in words is "twenty billion, one hundred forty-five million, four hundred thirty thousand, twenty-three".