11001430420431 has 32 divisors (see below), whose sum is σ = 16152788441088. Its totient is φ = 6604747580640.

The previous prime is 11001430420369. The next prime is 11001430420447. The reversal of 11001430420431 is 13402403410011.

It is not a de Polignac number, because 11001430420431 - 2¹³ = 11001430412239 is a prime.

It is a super-2 number, since 2×11001430420431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001430420031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52801000 + ... + 53008946.

It is an arithmetic number, because the mean of its divisors is an integer number (504774638784).

Almost surely, 2^{11001430420431} is an apocalyptic number.

11001430420431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11001430420431 is a deficient number, since it is larger than the sum of its proper divisors (5151358020657).

11001430420431 is a wasteful number, since it uses less digits than its factorization.

11001430420431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223051.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 11001430420431 its reverse (13402403410011), we get a palindrome (24403833830442).

The spelling of 11001430420431 in words is "eleven trillion, one billion, four hundred thirty million, four hundred twenty thousand, four hundred thirty-one".