1021413123203 has 16 divisors (see below), whose sum is σ = 1115016423936. Its totient is φ = 927934691040.

The previous prime is 1021413123197. The next prime is 1021413123223. The reversal of 1021413123203 is 3023213141201.

It is a cyclic number.

It is not a de Polignac number, because 1021413123203 - 2⁴ = 1021413123187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021413123223) 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, 197677526 + ... + 197682692.

It is an arithmetic number, because the mean of its divisors is an integer number (69688526496).

Almost surely, 2^{1021413123203} is an apocalyptic number.

1021413123203 is a deficient number, since it is larger than the sum of its proper divisors (93603300733).

1021413123203 is a wasteful number, since it uses less digits than its factorization.

1021413123203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13754.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1021413123203 its reverse (3023213141201), we get a palindrome (4044626264404).

The spelling of 1021413123203 in words is "one trillion, twenty-one billion, four hundred thirteen million, one hundred twenty-three thousand, two hundred three".