1423121210100 has 54 divisors (see below), whose sum is σ = 4460694373590. Its totient is φ = 379498989120.

The previous prime is 1423121210053. The next prime is 1423121210117. The reversal of 1423121210100 is 10121213241.

1423121210100 is a `hidden beast` number, since 1 + 42 + 312 + 1 + 210 + 100 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 43219915236 + 1379901294864 = 207894^2 + 1174692^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 790621995 + ... + 790623794.

Almost surely, 2^{1423121210100} is an apocalyptic number.

1423121210100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1423121210100 is an abundant number, since it is smaller than the sum of its proper divisors (3037573163490).

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

1423121210100 is a wasteful number, since it uses less digits than its factorization.

1423121210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581245809 (or 1581245799 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1423121210100 its reverse (10121213241), we get a palindrome (1433242423341).

The spelling of 1423121210100 in words is "one trillion, four hundred twenty-three billion, one hundred twenty-one million, two hundred ten thousand, one hundred".