1020353062451 has 4 divisors (see below), whose sum is σ = 1024036647792. Its totient is φ = 1016669477112.

The previous prime is 1020353062343. The next prime is 1020353062471. The reversal of 1020353062451 is 1542603530201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020353062451 is a prime.

It is a super-2 number, since 2×1020353062451² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020353062471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1841792255 + ... + 1841792808.

It is an arithmetic number, because the mean of its divisors is an integer number (256009161948).

Almost surely, 2^{1020353062451} is an apocalyptic number.

1020353062451 is a deficient number, since it is larger than the sum of its proper divisors (3683585341).

1020353062451 is an equidigital number, since it uses as much as digits as its factorization.

1020353062451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3683585340.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 1020353062451 its reverse (1542603530201), we get a palindrome (2562956592652).

The spelling of 1020353062451 in words is "one trillion, twenty billion, three hundred fifty-three million, sixty-two thousand, four hundred fifty-one".