31211421434 has 8 divisors (see below), whose sum is σ = 46820252448. Its totient is φ = 15604670620.

The previous prime is 31211421433. The next prime is 31211421463. The reversal of 31211421434 is 43412411213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31211421431) 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, 481982 + ... + 542889.

It is an arithmetic number, because the mean of its divisors is an integer number (5852531556).

Almost surely, 2^31211421434 is an apocalyptic number.

31211421434 is a deficient number, since it is larger than the sum of its proper divisors (15608831014).

31211421434 is a wasteful number, since it uses less digits than its factorization.

31211421434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040100.

The product of its digits is 2304, while the sum is 26.

Adding to 31211421434 its reverse (43412411213), we get a palindrome (74623832647).

The spelling of 31211421434 in words is "thirty-one billion, two hundred eleven million, four hundred twenty-one thousand, four hundred thirty-four".