251224034342 has 8 divisors (see below), whose sum is σ = 387020809776. Its totient is φ = 122217097752.

The previous prime is 251224034309. The next prime is 251224034389. The reversal of 251224034342 is 243430422152.

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

It is a super-2 number, since 2×251224034342² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 251224034299 and 251224034308.

It is a congruent number.

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, 1697459618 + ... + 1697459765.

It is an arithmetic number, because the mean of its divisors is an integer number (48377601222).

Almost surely, 2^251224034342 is an apocalyptic number.

251224034342 is a deficient number, since it is larger than the sum of its proper divisors (135796775434).

251224034342 is a wasteful number, since it uses less digits than its factorization.

251224034342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3394919422.

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 251224034342 its reverse (243430422152), we get a palindrome (494654456494).

The spelling of 251224034342 in words is "two hundred fifty-one billion, two hundred twenty-four million, thirty-four thousand, three hundred forty-two".