1401123431000 has 32 divisors (see below), whose sum is σ = 3278628830880. Its totient is φ = 560449372000.

The previous prime is 1401123430951. The next prime is 1401123431027. The reversal of 1401123431000 is 1343211041.

It is a super-2 number, since 2×1401123431000² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 700560716 + ... + 700562715.

It is an arithmetic number, because the mean of its divisors is an integer number (102457150965).

Almost surely, 2^{1401123431000} is an apocalyptic number.

1401123431000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401123431000 is an abundant number, since it is smaller than the sum of its proper divisors (1877505399880).

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

1401123431000 is a wasteful number, since it uses less digits than its factorization.

1401123431000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401123452 (or 1401123438 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1401123431000 its reverse (1343211041), we get a palindrome (1402466642041).

The spelling of 1401123431000 in words is "one trillion, four hundred one billion, one hundred twenty-three million, four hundred thirty-one thousand".