31421154256034 has 4 divisors (see below), whose sum is σ = 47131731384054. Its totient is φ = 15710577128016.

The previous prime is 31421154256033. The next prime is 31421154256043. The reversal of 31421154256034 is 43065245112413.

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

It can be written as a sum of positive squares in only one way, i.e., 23232371080009 + 8188783176025 = 4819997^2 + 2861605^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31421154255982 and 31421154256000.

It is not an unprimeable number, because it can be changed into a prime (31421154256033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7855288564007 + ... + 7855288564010.

Almost surely, 2^{31421154256034} is an apocalyptic number.

31421154256034 is a deficient number, since it is larger than the sum of its proper divisors (15710577128020).

31421154256034 is a wasteful number, since it uses less digits than its factorization.

31421154256034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15710577128019.

The product of its (nonzero) digits is 345600, while the sum is 41.

Adding to 31421154256034 its reverse (43065245112413), we get a palindrome (74486399368447).

The spelling of 31421154256034 in words is "thirty-one trillion, four hundred twenty-one billion, one hundred fifty-four million, two hundred fifty-six thousand, thirty-four".