1611214421431 has 8 divisors (see below), whose sum is σ = 1643455646928. Its totient is φ = 1579161192000.

The previous prime is 1611214421429. The next prime is 1611214421473. The reversal of 1611214421431 is 1341244121161.

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

It is a cyclic number.

It is not a de Polignac number, because 1611214421431 - 2¹ = 1611214421429 is a prime.

It is a super-2 number, since 2×1611214421431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1611214421393 and 1611214421402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1611214421231) 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, 46981705 + ... + 47015986.

It is an arithmetic number, because the mean of its divisors is an integer number (205431955866).

Almost surely, 2^{1611214421431} is an apocalyptic number.

1611214421431 is a deficient number, since it is larger than the sum of its proper divisors (32241225497).

1611214421431 is an equidigital number, since it uses as much as digits as its factorization.

1611214421431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93998033.

The product of its digits is 4608, while the sum is 31.

Adding to 1611214421431 its reverse (1341244121161), we get a palindrome (2952458542592).

The spelling of 1611214421431 in words is "one trillion, six hundred eleven billion, two hundred fourteen million, four hundred twenty-one thousand, four hundred thirty-one".