1012990101 has 16 divisors (see below), whose sum is σ = 1436258304. Its totient is φ = 632866304.

The previous prime is 1012990091. The next prime is 1012990151. The reversal of 1012990101 is 1010992101.

It is a cyclic number.

It is not a de Polignac number, because 1012990101 - 2¹³ = 1012981909 is a prime.

It is a super-2 number, since 2×1012990101² = 2052297889447980402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012990151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30741 + ... + 54506.

It is an arithmetic number, because the mean of its divisors is an integer number (89766144).

Almost surely, 2^1012990101 is an apocalyptic number.

It is an amenable number.

1012990101 is a deficient number, since it is larger than the sum of its proper divisors (423268203).

1012990101 is a wasteful number, since it uses less digits than its factorization.

1012990101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85500.

The product of its (nonzero) digits is 162, while the sum is 24.

The square root of 1012990101 is about 31827.5054159135. The cubic root of 1012990101 is about 1004.3114186221.

The spelling of 1012990101 in words is "one billion, twelve million, nine hundred ninety thousand, one hundred one".