1021350413523 has 16 divisors (see below), whose sum is σ = 1533523203072. Its totient is φ = 599032500000.

The previous prime is 1021350413519. The next prime is 1021350413543. The reversal of 1021350413523 is 3253140531201.

It is not a de Polignac number, because 1021350413523 - 2² = 1021350413519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021350413543) 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, 499192728 + ... + 499194773.

It is an arithmetic number, because the mean of its divisors is an integer number (95845200192).

Almost surely, 2^{1021350413523} is an apocalyptic number.

1021350413523 is a deficient number, since it is larger than the sum of its proper divisors (512172789549).

1021350413523 is a wasteful number, since it uses less digits than its factorization.

1021350413523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998387546.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 1021350413523 its reverse (3253140531201), we get a palindrome (4274490944724).

The spelling of 1021350413523 in words is "one trillion, twenty-one billion, three hundred fifty million, four hundred thirteen thousand, five hundred twenty-three".