1021400310043 has 16 divisors (see below), whose sum is σ = 1085257789056. Its totient is φ = 957967534080.

The previous prime is 1021400310041. The next prime is 1021400310079. The reversal of 1021400310043 is 3400130041201.

It is a cyclic number.

It is not a de Polignac number, because 1021400310043 - 2¹ = 1021400310041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1021400310043.

It is not an unprimeable number, because it can be changed into a prime (1021400310041) 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, 6197598 + ... + 6360268.

It is an arithmetic number, because the mean of its divisors is an integer number (67828611816).

Almost surely, 2^{1021400310043} is an apocalyptic number.

1021400310043 is a deficient number, since it is larger than the sum of its proper divisors (63857479013).

1021400310043 is a wasteful number, since it uses less digits than its factorization.

1021400310043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163974.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1021400310043 its reverse (3400130041201), we get a palindrome (4421530351244).

The spelling of 1021400310043 in words is "one trillion, twenty-one billion, four hundred million, three hundred ten thousand, forty-three".