10101402020 has 24 divisors (see below), whose sum is σ = 21229609464. Its totient is φ = 4037386496.

The previous prime is 10101402007. The next prime is 10101402053. The reversal of 10101402020 is 2020410101.

It can be written as a sum of positive squares in 4 ways, for example, as 948270436 + 9153131584 = 30794^2 + 95672^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10101401992 and 10101402010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172217 + ... + 223296.

It is an arithmetic number, because the mean of its divisors is an integer number (884567061).

Almost surely, 2^10101402020 is an apocalyptic number.

10101402020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10101402020 is an abundant number, since it is smaller than the sum of its proper divisors (11128207444).

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

10101402020 is a wasteful number, since it uses less digits than its factorization.

10101402020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396799 (or 396797 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10101402020 its reverse (2020410101), we get a palindrome (12121812121).

The spelling of 10101402020 in words is "ten billion, one hundred one million, four hundred two thousand, twenty".