31300243402 has 8 divisors (see below), whose sum is σ = 48569343300. Its totient is φ = 15110462304.

The previous prime is 31300243367. The next prime is 31300243423. The reversal of 31300243402 is 20434200313.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30666664161 + 633579241 = 175119^2 + 25171^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269829627 + ... + 269829742.

Almost surely, 2^31300243402 is an apocalyptic number.

31300243402 is a deficient number, since it is larger than the sum of its proper divisors (17269099898).

31300243402 is a wasteful number, since it uses less digits than its factorization.

31300243402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539659400.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 31300243402 its reverse (20434200313), we get a palindrome (51734443715).

The spelling of 31300243402 in words is "thirty-one billion, three hundred million, two hundred forty-three thousand, four hundred two".