31012043421 has 8 divisors (see below), whose sum is σ = 41623228864. Its totient is φ = 20537776800.

The previous prime is 31012043347. The next prime is 31012043437. The reversal of 31012043421 is 12434021013.

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

It is not a de Polignac number, because 31012043421 - 2¹⁴ = 31012027037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31012043521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34229176 + ... + 34230081.

It is an arithmetic number, because the mean of its divisors is an integer number (5202903608).

Almost surely, 2^31012043421 is an apocalyptic number.

It is an amenable number.

31012043421 is a deficient number, since it is larger than the sum of its proper divisors (10611185443).

31012043421 is a wasteful number, since it uses less digits than its factorization.

31012043421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68459411.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31012043421 its reverse (12434021013), we get a palindrome (43446064434).

The spelling of 31012043421 in words is "thirty-one billion, twelve million, forty-three thousand, four hundred twenty-one".