1420131543100 has 72 divisors (see below), whose sum is σ = 3217842044928. Its totient is φ = 542987966400.

The previous prime is 1420131543097. The next prime is 1420131543101. The reversal of 1420131543100 is 13451310241.

It is a super-2 number, since 2×1420131543100² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420131543101) 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, 3212485 + ... + 3627715.

It is an arithmetic number, because the mean of its divisors is an integer number (44692250624).

Almost surely, 2^{1420131543100} is an apocalyptic number.

1420131543100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1420131543100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1608921022464).

1420131543100 is an abundant number, since it is smaller than the sum of its proper divisors (1797710501828).

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

1420131543100 is a wasteful number, since it uses less digits than its factorization.

1420131543100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416755 (or 416748 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 1420131543100 its reverse (13451310241), we get a palindrome (1433582853341).

The spelling of 1420131543100 in words is "one trillion, four hundred twenty billion, one hundred thirty-one million, five hundred forty-three thousand, one hundred".