1010020101 has 4 divisors (see below), whose sum is σ = 1346693472. Its totient is φ = 673346732.

The previous prime is 1010020097. The next prime is 1010020153. The reversal of 1010020101 is 1010200101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1010200101 = 3 ⋅336733367.

It is a cyclic number.

It is not a de Polignac number, because 1010020101 - 2² = 1010020097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1010020101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010020171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168336681 + ... + 168336686.

It is an arithmetic number, because the mean of its divisors is an integer number (336673368).

Almost surely, 2^1010020101 is an apocalyptic number.

It is an amenable number.

1010020101 is a deficient number, since it is larger than the sum of its proper divisors (336673371).

1010020101 is an equidigital number, since it uses as much as digits as its factorization.

1010020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336673370.

The product of its (nonzero) digits is 2, while the sum is 6.

The square root of 1010020101 is about 31780.8134099806. The cubic root of 1010020101 is about 1003.3289395313.

Adding to 1010020101 its reverse (1010200101), we get a palindrome (2020220202).

The spelling of 1010020101 in words is "one billion, ten million, twenty thousand, one hundred one".