201202431402 has 64 divisors (see below), whose sum is σ = 466490824704. Its totient is φ = 56661890880.

The previous prime is 201202431347. The next prime is 201202431421. The reversal of 201202431402 is 204134202102.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16612633 + ... + 16624739.

It is an arithmetic number, because the mean of its divisors is an integer number (7288919136).

Almost surely, 2^201202431402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201202431402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233245412352).

201202431402 is an abundant number, since it is smaller than the sum of its proper divisors (265288393302).

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

201202431402 is a wasteful number, since it uses less digits than its factorization.

201202431402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17763.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 201202431402 its reverse (204134202102), we get a palindrome (405336633504).

The spelling of 201202431402 in words is "two hundred one billion, two hundred two million, four hundred thirty-one thousand, four hundred two".