1020101405 has 16 divisors (see below), whose sum is σ = 1352484864. Its totient is φ = 734680320.

The previous prime is 1020101363. The next prime is 1020101413. The reversal of 1020101405 is 5041010201.

It is not a de Polignac number, because 1020101405 - 2⁸ = 1020101149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020101405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258941 + ... + 262850.

It is an arithmetic number, because the mean of its divisors is an integer number (84530304).

Almost surely, 2^1020101405 is an apocalyptic number.

It is an amenable number.

1020101405 is a deficient number, since it is larger than the sum of its proper divisors (332383459).

1020101405 is a wasteful number, since it uses less digits than its factorization.

1020101405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521836.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 1020101405 is about 31939.0263627431. The cubic root of 1020101405 is about 1006.6560668128.

Adding to 1020101405 its reverse (5041010201), we get a palindrome (6061111606).

The spelling of 1020101405 in words is "one billion, twenty million, one hundred one thousand, four hundred five".