11430521031 has 16 divisors (see below), whose sum is σ = 15465144800. Its totient is φ = 7508809728.

The previous prime is 11430521029. The next prime is 11430521033. The reversal of 11430521031 is 13012503411.

It is an interprime number because it is at equal distance from previous prime (11430521029) and next prime (11430521033).

It is not a de Polignac number, because 11430521031 - 2¹ = 11430521029 is a prime.

It is a super-2 number, since 2×11430521031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11430520989 and 11430521007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11430521033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19126 + ... + 152403.

It is an arithmetic number, because the mean of its divisors is an integer number (966571550).

Almost surely, 2^11430521031 is an apocalyptic number.

11430521031 is a deficient number, since it is larger than the sum of its proper divisors (4034623769).

11430521031 is a wasteful number, since it uses less digits than its factorization.

11430521031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171858.

The product of its (nonzero) digits is 360, while the sum is 21.

The spelling of 11430521031 in words is "eleven billion, four hundred thirty million, five hundred twenty-one thousand, thirty-one".