30978357141 has 16 divisors (see below), whose sum is σ = 41497555968. Its totient is φ = 20555788800.

The previous prime is 30978357103. The next prime is 30978357187. The reversal of 30978357141 is 14175387903.

It is not a de Polignac number, because 30978357141 - 2⁶ = 30978357077 is a prime.

It is a super-2 number, since 2×30978357141² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30978357341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1516105 + ... + 1536401.

It is an arithmetic number, because the mean of its divisors is an integer number (2593597248).

Almost surely, 2^30978357141 is an apocalyptic number.

It is an amenable number.

30978357141 is a deficient number, since it is larger than the sum of its proper divisors (10519198827).

30978357141 is a wasteful number, since it uses less digits than its factorization.

30978357141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22652.

The product of its (nonzero) digits is 635040, while the sum is 48.

The spelling of 30978357141 in words is "thirty billion, nine hundred seventy-eight million, three hundred fifty-seven thousand, one hundred forty-one".