1054020203491 has 2 divisors, whose sum is σ = 1054020203492. Its totient is φ = 1054020203490.

The previous prime is 1054020203479. The next prime is 1054020203527. The reversal of 1054020203491 is 1943020204501.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1054020203491 is a prime.

It is a super-2 number, since 2×1054020203491² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1054020203471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527010101745 + 527010101746.

It is an arithmetic number, because the mean of its divisors is an integer number (527010101746).

Almost surely, 2^{1054020203491} is an apocalyptic number.

1054020203491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1054020203491 is an equidigital number, since it uses as much as digits as its factorization.

1054020203491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 1054020203491 its reverse (1943020204501), we get a palindrome (2997040407992).

The spelling of 1054020203491 in words is "one trillion, fifty-four billion, twenty million, two hundred three thousand, four hundred ninety-one".