1401010101 has 20 divisors (see below), whose sum is σ = 2095979424. Its totient is φ = 932617800.

The previous prime is 1401010073. The next prime is 1401010111. The reversal of 1401010101 is 1010101041.

It is not a de Polignac number, because 1401010101 - 2¹¹ = 1401008053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

1401010101 is a modest number, since divided by 10101 gives 1401 as remainder.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401010111) 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 19 ways as a sum of consecutive naturals, for example, 43456 + ... + 68486.

Almost surely, 2^1401010101 is an apocalyptic number.

It is an amenable number.

1401010101 is a deficient number, since it is larger than the sum of its proper divisors (694969323).

1401010101 is an equidigital number, since it uses as much as digits as its factorization.

1401010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25734 (or 25725 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1401010101 is about 37430.0694762914. The cubic root of 1401010101 is about 1118.9579223589.

Adding to 1401010101 its reverse (1010101041), we get a palindrome (2411111142).

The spelling of 1401010101 in words is "one billion, four hundred one million, ten thousand, one hundred one".