354303513220402 has 4 divisors (see below), whose sum is σ = 531455269830606. Its totient is φ = 177151756610200.

The previous prime is 354303513220357. The next prime is 354303513220409. The reversal of 354303513220402 is 204022315303453.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 348304545600561 + 5998967619841 = 18662919^2 + 2449279^2 .

It is not an unprimeable number, because it can be changed into a prime (354303513220409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 88575878305099 + ... + 88575878305102.

Almost surely, 2^{354303513220402} is an apocalyptic number.

354303513220402 is a deficient number, since it is larger than the sum of its proper divisors (177151756610204).

354303513220402 is a wasteful number, since it uses less digits than its factorization.

354303513220402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177151756610203.

The product of its (nonzero) digits is 259200, while the sum is 37.

Adding to 354303513220402 its reverse (204022315303453), we get a palindrome (558325828523855).

The spelling of 354303513220402 in words is "three hundred fifty-four trillion, three hundred three billion, five hundred thirteen million, two hundred twenty thousand, four hundred two".