1401403123212 has 192 divisors, whose sum is σ = 3681383126400. Its totient is φ = 412835512320.

The previous prime is 1401403123171. The next prime is 1401403123291. The reversal of 1401403123212 is 2123213041041.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32096148 + ... + 32139780.

It is an arithmetic number, because the mean of its divisors is an integer number (19173870450).

Almost surely, 2^{1401403123212} is an apocalyptic number.

1401403123212 is a gapful number since it is divisible by the number (12) 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 1401403123212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1840691563200).

1401403123212 is an abundant number, since it is smaller than the sum of its proper divisors (2279980003188).

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

1401403123212 is a wasteful number, since it uses less digits than its factorization.

1401403123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43836 (or 43834 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1401403123212 its reverse (2123213041041), we get a palindrome (3524616164253).

The spelling of 1401403123212 in words is "one trillion, four hundred one billion, four hundred three million, one hundred twenty-three thousand, two hundred twelve".