21080833461431 has 8 divisors (see below), whose sum is σ = 22865294257344. Its totient is φ = 19356862862080.

The previous prime is 21080833461287. The next prime is 21080833461433. The reversal of 21080833461431 is 13416433808012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21080833461431 is a prime.

It is a super-2 number, since 2×21080833461431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21080833461433) 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, 15122548415 + ... + 15122549808.

It is an arithmetic number, because the mean of its divisors is an integer number (2858161782168).

Almost surely, 2^{21080833461431} is an apocalyptic number.

21080833461431 is a deficient number, since it is larger than the sum of its proper divisors (1784460795913).

21080833461431 is a wasteful number, since it uses less digits than its factorization.

21080833461431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30245098281.

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 21080833461431 in words is "twenty-one trillion, eighty billion, eight hundred thirty-three million, four hundred sixty-one thousand, four hundred thirty-one".