1010101242420 has 72 divisors (see below), whose sum is σ = 3073954307424. Its totient is φ = 268482921408.

The previous prime is 1010101242413. The next prime is 1010101242427. The reversal of 1010101242420 is 242421010101.

1010101242420 is a `hidden beast` number, since 1 + 0 + 1 + 0 + 1 + 0 + 1 + 242 + 420 = 666.

It is an interprime number because it is at equal distance from previous prime (1010101242413) and next prime (1010101242427).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1010101242393 and 1010101242402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010101242427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9084274 + ... + 9194793.

Almost surely, 2^{1010101242420} is an apocalyptic number.

1010101242420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010101242420 is an abundant number, since it is smaller than the sum of its proper divisors (2063853065004).

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

1010101242420 is a wasteful number, since it uses less digits than its factorization.

1010101242420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18279389 (or 18279384 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1010101242420 its reverse (242421010101), we get a palindrome (1252522252521).

It can be divided in two parts, 1010101 and 242420, that added together give a palindrome (1252521).

The spelling of 1010101242420 in words is "one trillion, ten billion, one hundred one million, two hundred forty-two thousand, four hundred twenty".