2251353231402 has 16 divisors (see below), whose sum is σ = 4912043414112. Its totient is φ = 682228251920.

The previous prime is 2251353231367. The next prime is 2251353231409. The reversal of 2251353231402 is 2041323531522.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (2251353231409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17055706233 + ... + 17055706364.

It is an arithmetic number, because the mean of its divisors is an integer number (307002713382).

Almost surely, 2^{2251353231402} is an apocalyptic number.

2251353231402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2251353231402 is an abundant number, since it is smaller than the sum of its proper divisors (2660690182710).

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

2251353231402 is a wasteful number, since it uses less digits than its factorization.

2251353231402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34111412613.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 2251353231402 its reverse (2041323531522), we get a palindrome (4292676762924).

The spelling of 2251353231402 in words is "two trillion, two hundred fifty-one billion, three hundred fifty-three million, two hundred thirty-one thousand, four hundred two".