21340130033432 has 32 divisors (see below), whose sum is σ = 47717060947200. Its totient is φ = 8748127839264.

The previous prime is 21340130033423. The next prime is 21340130033437. The reversal of 21340130033432 is 23433003104312.

It is a super-2 number, since 2×21340130033432² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21340130033395 and 21340130033404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21340130033437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8284210682 + ... + 8284213257.

It is an arithmetic number, because the mean of its divisors is an integer number (1491158154600).

Almost surely, 2^{21340130033432} is an apocalyptic number.

It is an amenable number.

21340130033432 is an abundant number, since it is smaller than the sum of its proper divisors (26376930913768).

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

21340130033432 is a wasteful number, since it uses less digits than its factorization.

21340130033432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16568423975 (or 16568423971 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 21340130033432 its reverse (23433003104312), we get a palindrome (44773133137744).

The spelling of 21340130033432 in words is "twenty-one trillion, three hundred forty billion, one hundred thirty million, thirty-three thousand, four hundred thirty-two".