1401100120 has 64 divisors (see below), whose sum is σ = 3676392000. Its totient is φ = 480372480.

The previous prime is 1401100117. The next prime is 1401100121. The reversal of 1401100120 is 210011041.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1401100097 and 1401100106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401100121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37341 + ... + 64780.

It is an arithmetic number, because the mean of its divisors is an integer number (57443625).

Almost surely, 2^1401100120 is an apocalyptic number.

1401100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401100120 is an abundant number, since it is smaller than the sum of its proper divisors (2275291880).

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

1401100120 is a wasteful number, since it uses less digits than its factorization.

1401100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102153 (or 102135 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1401100120 is about 37431.2719527403. The cubic root of 1401100120 is about 1118.9818872862.

Adding to 1401100120 its reverse (210011041), we get a palindrome (1611111161).

The spelling of 1401100120 in words is "one billion, four hundred one million, one hundred thousand, one hundred twenty".