126431520020254 has 16 divisors (see below), whose sum is σ = 189819017579520. Its totient is φ = 63158526381600.

The previous prime is 126431520020243. The next prime is 126431520020293. The reversal of 126431520020254 is 452020025134621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17671752 + ... + 23772964.

It is an arithmetic number, because the mean of its divisors is an integer number (11863688598720).

Almost surely, 2^{126431520020254} is an apocalyptic number.

126431520020254 is a deficient number, since it is larger than the sum of its proper divisors (63387497559266).

126431520020254 is a wasteful number, since it uses less digits than its factorization.

126431520020254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6110595.

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 126431520020254 its reverse (452020025134621), we get a palindrome (578451545154875).

The spelling of 126431520020254 in words is "one hundred twenty-six trillion, four hundred thirty-one billion, five hundred twenty million, twenty thousand, two hundred fifty-four".