1161937011 has 8 divisors (see below), whose sum is σ = 1591121104. Its totient is φ = 753688800.

The previous prime is 1161936989. The next prime is 1161937033. The reversal of 1161937011 is 1107391611.

It is an interprime number because it is at equal distance from previous prime (1161936989) and next prime (1161937033).

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

It is not a de Polignac number, because 1161937011 - 2⁹ = 1161936499 is a prime.

It is a super-2 number, since 2×1161937011² = 2700195235063228242, 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 1161937011.

It is not an unprimeable number, because it can be changed into a prime (1161939011) 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, 5233840 + ... + 5234061.

It is an arithmetic number, because the mean of its divisors is an integer number (198890138).

Almost surely, 2^1161937011 is an apocalyptic number.

1161937011 is a deficient number, since it is larger than the sum of its proper divisors (429184093).

1161937011 is a wasteful number, since it uses less digits than its factorization.

1161937011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10467941.

The product of its (nonzero) digits is 1134, while the sum is 30.

The square root of 1161937011 is about 34087.1971713721. The cubic root of 1161937011 is about 1051.3020916547.

The spelling of 1161937011 in words is "one billion, one hundred sixty-one million, nine hundred thirty-seven thousand, eleven".