1401002123240 has 32 divisors (see below), whose sum is σ = 3153089268000. Its totient is φ = 560252495424.

The previous prime is 1401002123233. The next prime is 1401002123243. The reversal of 1401002123240 is 423212001041.

It is a super-4 number, since 4×1401002123240⁴ (a number of 50 digits) contains 4444 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (1401002123243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4483010 + ... + 4785329.

It is an arithmetic number, because the mean of its divisors is an integer number (98534039625).

Almost surely, 2^{1401002123240} is an apocalyptic number.

1401002123240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401002123240 is an abundant number, since it is smaller than the sum of its proper divisors (1752087144760).

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

1401002123240 is a wasteful number, since it uses less digits than its factorization.

1401002123240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9272129 (or 9272125 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1401002123240 its reverse (423212001041), we get a palindrome (1824214124281).

The spelling of 1401002123240 in words is "one trillion, four hundred one billion, two million, one hundred twenty-three thousand, two hundred forty".