1023041155 has 8 divisors (see below), whose sum is σ = 1229194512. Its totient is φ = 817402848.

The previous prime is 1023041099. The next prime is 1023041167. The reversal of 1023041155 is 5511403201.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1023041155 is a prime.

It is a super-2 number, since 2×1023041155² = 2093226409647468050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124377 + ... + 132346.

It is an arithmetic number, because the mean of its divisors is an integer number (153649314).

Almost surely, 2^1023041155 is an apocalyptic number.

1023041155 is a deficient number, since it is larger than the sum of its proper divisors (206153357).

1023041155 is an equidigital number, since it uses as much as digits as its factorization.

1023041155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257525.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1023041155 is about 31985.0145380614. The cubic root of 1023041155 is about 1007.6221403683.

Adding to 1023041155 its reverse (5511403201), we get a palindrome (6534444356).

The spelling of 1023041155 in words is "one billion, twenty-three million, forty-one thousand, one hundred fifty-five".