20203002402 has 48 divisors (see below), whose sum is σ = 47025782496. Its totient is φ = 5761993600.

The previous prime is 20203002401. The next prime is 20203002409. The reversal of 20203002402 is 20420030202.

It is a super-2 number, since 2×20203002402² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20203002401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 806124 + ... + 830807.

It is an arithmetic number, because the mean of its divisors is an integer number (979703802).

Almost surely, 2^20203002402 is an apocalyptic number.

20203002402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20203002402 is an abundant number, since it is smaller than the sum of its proper divisors (26822780094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20203002402 is a wasteful number, since it uses less digits than its factorization.

20203002402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636975 (or 1636964 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

Adding to 20203002402 its reverse (20420030202), we get a palindrome (40623032604).

The spelling of 20203002402 in words is "twenty billion, two hundred three million, two thousand, four hundred two".