1420101020 has 48 divisors (see below), whose sum is σ = 3215842560. Its totient is φ = 523654656.

The previous prime is 1420101019. The next prime is 1420101071. The reversal of 1420101020 is 201010241.

It is a junction number, because it is equal to n+sod(n) for n = 1420100992 and 1420101010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221216 + ... + 227544.

It is an arithmetic number, because the mean of its divisors is an integer number (66996720).

Almost surely, 2^1420101020 is an apocalyptic number.

1420101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1420101020 is an abundant number, since it is smaller than the sum of its proper divisors (1795741540).

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

1420101020 is a wasteful number, since it uses less digits than its factorization.

1420101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7214 (or 7212 counting only the distinct ones).

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

The square root of 1420101020 is about 37684.2277352210. The cubic root of 1420101020 is about 1124.0175178688.

Adding to 1420101020 its reverse (201010241), we get a palindrome (1621111261).

The spelling of 1420101020 in words is "one billion, four hundred twenty million, one hundred one thousand, twenty".