1010101042 has 4 divisors (see below), whose sum is σ = 1515151566. Its totient is φ = 505050520.

The previous prime is 1010101039. The next prime is 1010101049. The reversal of 1010101042 is 2401010101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 855621001 + 154480041 = 29251^2 + 12429^2 .

It is not an unprimeable number, because it can be changed into a prime (1010101049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252525259 + ... + 252525262.

Almost surely, 2^1010101042 is an apocalyptic number.

1010101042 is a deficient number, since it is larger than the sum of its proper divisors (505050524).

1010101042 is an equidigital number, since it uses as much as digits as its factorization.

1010101042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505050523.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1010101042 is about 31782.0868100255. The cubic root of 1010101042 is about 1003.3557404100.

Adding to 1010101042 its reverse (2401010101), we get a palindrome (3411111143).

The spelling of 1010101042 in words is "one billion, ten million, one hundred one thousand, forty-two".