1056213641340 has 216 divisors, whose sum is σ = 3784643645328. Its totient is φ = 236355425280.

The previous prime is 1056213641309. The next prime is 1056213641341. The reversal of 1056213641340 is 431463126501.

1056213641340 is a `hidden beast` number, since 1 + 0 + 5 + 6 + 2 + 1 + 3 + 641 + 3 + 4 + 0 = 666.

It is a super-2 number, since 2×1056213641340² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1056213641295 and 1056213641304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056213641341) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1243609 + ... + 1912848.

It is an arithmetic number, because the mean of its divisors is an integer number (17521498358).

Almost surely, 2^{1056213641340} is an apocalyptic number.

1056213641340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1056213641340 is an abundant number, since it is smaller than the sum of its proper divisors (2728430003988).

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

1056213641340 is a wasteful number, since it uses less digits than its factorization.

1056213641340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3156509 (or 3156491 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 1056213641340 its reverse (431463126501), we get a palindrome (1487676767841).

The spelling of 1056213641340 in words is "one trillion, fifty-six billion, two hundred thirteen million, six hundred forty-one thousand, three hundred forty".