30121332031 has 8 divisors (see below), whose sum is σ = 34434974880. Its totient is φ = 25810338048.

The previous prime is 30121331983. The next prime is 30121332049. The reversal of 30121332031 is 13023312103.

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

It is a cyclic number.

It is not a de Polignac number, because 30121332031 - 2¹³ = 30121323839 is a prime.

It is a super-2 number, since 2×30121332031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30121332091) 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, 637786 + ... + 683383.

It is an arithmetic number, because the mean of its divisors is an integer number (4304371860).

Almost surely, 2^30121332031 is an apocalyptic number.

30121332031 is a deficient number, since it is larger than the sum of its proper divisors (4313642849).

30121332031 is a wasteful number, since it uses less digits than its factorization.

30121332031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324433.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 30121332031 its reverse (13023312103), we get a palindrome (43144644134).

The spelling of 30121332031 in words is "thirty billion, one hundred twenty-one million, three hundred thirty-two thousand, thirty-one".