1056212530321 has 16 divisors (see below), whose sum is σ = 1187305741440. Its totient is φ = 932268142080.

The previous prime is 1056212530313. The next prime is 1056212530333. The reversal of 1056212530321 is 1230352126501.

It is a cyclic number.

It is not a de Polignac number, because 1056212530321 - 2³ = 1056212530313 is a prime.

It is a super-2 number, since 2×1056212530321² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1056212570321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328450 + ... + 1490068.

It is an arithmetic number, because the mean of its divisors is an integer number (74206608840).

Almost surely, 2^{1056212530321} is an apocalyptic number.

It is an amenable number.

1056212530321 is a deficient number, since it is larger than the sum of its proper divisors (131093211119).

1056212530321 is a wasteful number, since it uses less digits than its factorization.

1056212530321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164696.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 1056212530321 its reverse (1230352126501), we get a palindrome (2286564656822).

The spelling of 1056212530321 in words is "one trillion, fifty-six billion, two hundred twelve million, five hundred thirty thousand, three hundred twenty-one".