11651001042 has 32 divisors (see below), whose sum is σ = 23766268608. Its totient is φ = 3806942976.

The previous prime is 11651001041. The next prime is 11651001083. The reversal of 11651001042 is 24010015611.

11651001042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11651001041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10203 + ... + 152990.

It is an arithmetic number, because the mean of its divisors is an integer number (742695894).

Almost surely, 2^11651001042 is an apocalyptic number.

11651001042 is an abundant number, since it is smaller than the sum of its proper divisors (12115267566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11651001042 is a wasteful number, since it uses less digits than its factorization.

11651001042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163434.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 11651001042 its reverse (24010015611), we get a palindrome (35661016653).

The spelling of 11651001042 in words is "eleven billion, six hundred fifty-one million, one thousand, forty-two".