31450131033 has 24 divisors (see below), whose sum is σ = 43484751648. Its totient is φ = 20217942528.

The previous prime is 31450130947. The next prime is 31450131043. The reversal of 31450131033 is 33013105413.

It is not a de Polignac number, because 31450131033 - 2¹² = 31450126937 is a prime.

It is a super-2 number, since 2×31450131033² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31450130994 and 31450131012.

It is not an unprimeable number, because it can be changed into a prime (31450131043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2078985 + ... + 2094057.

It is an arithmetic number, because the mean of its divisors is an integer number (1811864652).

Almost surely, 2^31450131033 is an apocalyptic number.

It is an amenable number.

31450131033 is a deficient number, since it is larger than the sum of its proper divisors (12034620615).

31450131033 is a wasteful number, since it uses less digits than its factorization.

31450131033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15961 (or 15932 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 24.

Adding to 31450131033 its reverse (33013105413), we get a palindrome (64463236446).

The spelling of 31450131033 in words is "thirty-one billion, four hundred fifty million, one hundred thirty-one thousand, thirty-three".