1011201145 has 8 divisors (see below), whose sum is σ = 1255284360. Its totient is φ = 781065600.

The previous prime is 1011201143. The next prime is 1011201173. The reversal of 1011201145 is 5411021101.

It can be written as a sum of positive squares in 4 ways, for example, as 724201 + 1010476944 = 851^2 + 31788^2 .

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

It is not a de Polignac number, because 1011201145 - 2¹ = 1011201143 is a prime.

It is a super-2 number, since 2×1011201145² = 2045055511298622050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1011201143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3486756 + ... + 3487045.

It is an arithmetic number, because the mean of its divisors is an integer number (156910545).

Almost surely, 2^1011201145 is an apocalyptic number.

It is an amenable number.

1011201145 is a deficient number, since it is larger than the sum of its proper divisors (244083215).

1011201145 is an equidigital number, since it uses as much as digits as its factorization.

1011201145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6973835.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 1011201145 is about 31799.3890664585. The cubic root of 1011201145 is about 1003.7198604803.

Adding to 1011201145 its reverse (5411021101), we get a palindrome (6422222246).

The spelling of 1011201145 in words is "one billion, eleven million, two hundred one thousand, one hundred forty-five".