1401323413020 has 48 divisors (see below), whose sum is σ = 3927446157600. Its totient is φ = 373329995776.

The previous prime is 1401323413019. The next prime is 1401323413027. The reversal of 1401323413020 is 203143231041.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401323413027) 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, 11069277 + ... + 11195156.

It is an arithmetic number, because the mean of its divisors is an integer number (81821794950).

Almost surely, 2^{1401323413020} is an apocalyptic number.

1401323413020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401323413020 is an abundant number, since it is smaller than the sum of its proper divisors (2526122744580).

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

1401323413020 is a wasteful number, since it uses less digits than its factorization.

1401323413020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22265494 (or 22265492 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1401323413020 its reverse (203143231041), we get a palindrome (1604466644061).

The spelling of 1401323413020 in words is "one trillion, four hundred one billion, three hundred twenty-three million, four hundred thirteen thousand, twenty".