1150021051 has 4 divisors (see below), whose sum is σ = 1174489632. Its totient is φ = 1125552472.

The previous prime is 1150020997. The next prime is 1150021099. The reversal of 1150021051 is 1501200511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1501200511 = 6481 ⋅231631.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1150021051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1150022051) 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, 12234220 + ... + 12234313.

It is an arithmetic number, because the mean of its divisors is an integer number (293622408).

Almost surely, 2^1150021051 is an apocalyptic number.

1150021051 is a deficient number, since it is larger than the sum of its proper divisors (24468581).

1150021051 is an equidigital number, since it uses as much as digits as its factorization.

1150021051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24468580.

The product of its (nonzero) digits is 50, while the sum is 16.

The square root of 1150021051 is about 33911.9602942679. The cubic root of 1150021051 is about 1047.6959458610.

Adding to 1150021051 its reverse (1501200511), we get a palindrome (2651221562).

The spelling of 1150021051 in words is "one billion, one hundred fifty million, twenty-one thousand, fifty-one".