1024155023 has 4 divisors (see below), whose sum is σ = 1028140320. Its totient is φ = 1020169728.

The previous prime is 1024155019. The next prime is 1024155061. The reversal of 1024155023 is 3205514201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3205514201 = 401 ⋅7993801.

It is a cyclic number.

It is not a de Polignac number, because 1024155023 - 2² = 1024155019 is a prime.

It is a super-2 number, since 2×1024155023² = 2097787022272261058, which contains 22 as substring.

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 1024155023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1024155073) 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, 1992263 + ... + 1992776.

It is an arithmetic number, because the mean of its divisors is an integer number (257035080).

Almost surely, 2^1024155023 is an apocalyptic number.

1024155023 is a deficient number, since it is larger than the sum of its proper divisors (3985297).

1024155023 is an equidigital number, since it uses as much as digits as its factorization.

1024155023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3985296.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1024155023 is about 32002.4221427066. The cubic root of 1024155023 is about 1007.9877010840.

Adding to 1024155023 its reverse (3205514201), we get a palindrome (4229669224).

The spelling of 1024155023 in words is "one billion, twenty-four million, one hundred fifty-five thousand, twenty-three".