15530151023 has 4 divisors (see below), whose sum is σ = 15566184288. Its totient is φ = 15494117760.

The previous prime is 15530151019. The next prime is 15530151053. The reversal of 15530151023 is 32015103551.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32015103551 = 10267 ⋅3118253.

It is a cyclic number.

It is not a de Polignac number, because 15530151023 - 2² = 15530151019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15530150983 and 15530151001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15530151053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18015986 + ... + 18016847.

It is an arithmetic number, because the mean of its divisors is an integer number (3891546072).

Almost surely, 2^15530151023 is an apocalyptic number.

15530151023 is a deficient number, since it is larger than the sum of its proper divisors (36033265).

15530151023 is an equidigital number, since it uses as much as digits as its factorization.

15530151023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36033264.

The product of its (nonzero) digits is 2250, while the sum is 26.

Adding to 15530151023 its reverse (32015103551), we get a palindrome (47545254574).

The spelling of 15530151023 in words is "fifteen billion, five hundred thirty million, one hundred fifty-one thousand, twenty-three".