31261240003432 has 16 divisors (see below), whose sum is σ = 58743085024260. Its totient is φ = 15596417330304.

The previous prime is 31261240003423. The next prime is 31261240003519. The reversal of 31261240003432 is 23430004216213.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30344828200996 + 916411802436 = 5508614^2 + 957294^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31261240003394 and 31261240003403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4275330043 + ... + 4275337354.

Almost surely, 2^{31261240003432} is an apocalyptic number.

It is an amenable number.

31261240003432 is a deficient number, since it is larger than the sum of its proper divisors (27481845020828).

31261240003432 is a wasteful number, since it uses less digits than its factorization.

31261240003432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8550667860 (or 8550667856 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 31261240003432 its reverse (23430004216213), we get a palindrome (54691244219645).

The spelling of 31261240003432 in words is "thirty-one trillion, two hundred sixty-one billion, two hundred forty million, three thousand, four hundred thirty-two".