30420402021131 has 8 divisors (see below), whose sum is σ = 31589036851680. Its totient is φ = 29259744220672.

The previous prime is 30420402021083. The next prime is 30420402021143. The reversal of 30420402021131 is 13112020402403.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30420402021131 is a prime.

It is a super-2 number, since 2×30420402021131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30420402021097 and 30420402021106.

It is not an unprimeable number, because it can be changed into a prime (30420402021431) 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, 1994249750 + ... + 1994265003.

It is an arithmetic number, because the mean of its divisors is an integer number (3948629606460).

Almost surely, 2^{30420402021131} is an apocalyptic number.

30420402021131 is a deficient number, since it is larger than the sum of its proper divisors (1168634830549).

30420402021131 is a wasteful number, since it uses less digits than its factorization.

30420402021131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3988515045.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 30420402021131 its reverse (13112020402403), we get a palindrome (43532422423534).

The spelling of 30420402021131 in words is "thirty trillion, four hundred twenty billion, four hundred two million, twenty-one thousand, one hundred thirty-one".