1011201042 has 16 divisors (see below), whose sum is σ = 2031989472. Its totient is φ = 335469120.

The previous prime is 1011201019. The next prime is 1011201077. The reversal of 1011201042 is 2401021101.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398103 + ... + 400634.

It is an arithmetic number, because the mean of its divisors is an integer number (126999342).

Almost surely, 2^1011201042 is an apocalyptic number.

1011201042 is an abundant number, since it is smaller than the sum of its proper divisors (1020788430).

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

1011201042 is a wasteful number, since it uses less digits than its factorization.

1011201042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798953.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1011201042 is about 31799.3874469305. The cubic root of 1011201042 is about 1003.7198264010.

Adding to 1011201042 its reverse (2401021101), we get a palindrome (3412222143).

The spelling of 1011201042 in words is "one billion, eleven million, two hundred one thousand, forty-two".