31434372031 has 4 divisors (see below), whose sum is σ = 32448384064. Its totient is φ = 30420360000.

The previous prime is 31434371981. The next prime is 31434372059. The reversal of 31434372031 is 13027343413.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31434372031 - 2¹¹ = 31434369983 is a prime.

It is a super-2 number, since 2×31434372031² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 1014012001 = 31434372031 / (3 + 1 + 4 + 3 + 4 + 3 + 7 + 2 + 0 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31434371984 and 31434372002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31434372061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 507005970 + ... + 507006031.

It is an arithmetic number, because the mean of its divisors is an integer number (8112096016).

Almost surely, 2^31434372031 is an apocalyptic number.

31434372031 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

31434372031 is a deficient number, since it is larger than the sum of its proper divisors (1014012033).

31434372031 is a wasteful number, since it uses less digits than its factorization.

31434372031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014012032.

The product of its (nonzero) digits is 18144, while the sum is 31.

The spelling of 31434372031 in words is "thirty-one billion, four hundred thirty-four million, three hundred seventy-two thousand, thirty-one".