1230021400032 has 144 divisors (see below), whose sum is σ = 3650796506448. Its totient is φ = 392459458560.

The previous prime is 1230021400019. The next prime is 1230021400033. The reversal of 1230021400032 is 2300041200321.

1230021400032 is a `hidden beast` number, since 1 + 230 + 0 + 2 + 1 + 400 + 0 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1230021399978 and 1230021400014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230021400033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 356898 + ... + 1608545.

It is an arithmetic number, because the mean of its divisors is an integer number (25352753517).

Almost surely, 2^{1230021400032} is an apocalyptic number.

1230021400032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1230021400032 is an abundant number, since it is smaller than the sum of its proper divisors (2420775106416).

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

1230021400032 is a wasteful number, since it uses less digits than its factorization.

1230021400032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1965553 (or 1965542 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1230021400032 its reverse (2300041200321), we get a palindrome (3530062600353).

The spelling of 1230021400032 in words is "one trillion, two hundred thirty billion, twenty-one million, four hundred thousand, thirty-two".