1055212521431 has 8 divisors (see below), whose sum is σ = 1069941279264. Its totient is φ = 1040491163520.

The previous prime is 1055212521409. The next prime is 1055212521449. The reversal of 1055212521431 is 1341252125501.

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 1055212521431 - 2⁶ = 1055212521367 is a prime.

It is a super-2 number, since 2×1055212521431² (a number of 25 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 (1055212521331) 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, 1562486 + ... + 2133491.

It is an arithmetic number, because the mean of its divisors is an integer number (133742659908).

Almost surely, 2^{1055212521431} is an apocalyptic number.

1055212521431 is a deficient number, since it is larger than the sum of its proper divisors (14728757833).

1055212521431 is an equidigital number, since it uses as much as digits as its factorization.

1055212521431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3699961.

The product of its (nonzero) digits is 12000, while the sum is 32.

Adding to 1055212521431 its reverse (1341252125501), we get a palindrome (2396464646932).

The spelling of 1055212521431 in words is "one trillion, fifty-five billion, two hundred twelve million, five hundred twenty-one thousand, four hundred thirty-one".