1143505030 has 32 divisors (see below), whose sum is σ = 2154320064. Its totient is φ = 436187136.

The previous prime is 1143505021. The next prime is 1143505049. The reversal of 1143505030 is 305053411.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1143504992 and 1143505010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70134 + ... + 84886.

It is an arithmetic number, because the mean of its divisors is an integer number (67322502).

Almost surely, 2^1143505030 is an apocalyptic number.

1143505030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1143505030 is a deficient number, since it is larger than the sum of its proper divisors (1010815034).

1143505030 is a wasteful number, since it uses less digits than its factorization.

1143505030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15120.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 1143505030 is about 33815.7512115286. The cubic root of 1143505030 is about 1045.7134479208.

Adding to 1143505030 its reverse (305053411), we get a palindrome (1448558441).

The spelling of 1143505030 in words is "one billion, one hundred forty-three million, five hundred five thousand, thirty".