30135890942 has 4 divisors (see below), whose sum is σ = 45203836416. Its totient is φ = 15067945470.

The previous prime is 30135890923. The next prime is 30135890947. The reversal of 30135890942 is 24909853103.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×30135890942³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30135890893 and 30135890902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30135890947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7533972734 + ... + 7533972737.

It is an arithmetic number, because the mean of its divisors is an integer number (11300959104).

Almost surely, 2^30135890942 is an apocalyptic number.

30135890942 is a deficient number, since it is larger than the sum of its proper divisors (15067945474).

30135890942 is a wasteful number, since it uses less digits than its factorization.

30135890942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15067945473.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 30135890942 in words is "thirty billion, one hundred thirty-five million, eight hundred ninety thousand, nine hundred forty-two".