31450000450142 has 32 divisors (see below), whose sum is σ = 49035291272352. Its totient is φ = 15115183317504.

The previous prime is 31450000450049. The next prime is 31450000450181. The reversal of 31450000450142 is 24105400005413.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262774778 + ... + 262894434.

It is an arithmetic number, because the mean of its divisors is an integer number (1532352852261).

Almost surely, 2^{31450000450142} is an apocalyptic number.

31450000450142 is a deficient number, since it is larger than the sum of its proper divisors (17585290822210).

31450000450142 is a wasteful number, since it uses less digits than its factorization.

31450000450142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162572.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 31450000450142 its reverse (24105400005413), we get a palindrome (55555400455555).

The spelling of 31450000450142 in words is "thirty-one trillion, four hundred fifty billion, four hundred fifty thousand, one hundred forty-two".