31542420150 has 72 divisors (see below), whose sum is σ = 84765137184. Its totient is φ = 8409211200.

The previous prime is 31542420103. The next prime is 31542420187. The reversal of 31542420150 is 5102424513.

31542420150 is a `hidden beast` number, since 31 + 5 + 424 + 201 + 5 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2782995 + ... + 2794305.

It is an arithmetic number, because the mean of its divisors is an integer number (1177293572).

Almost surely, 2^31542420150 is an apocalyptic number.

31542420150 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31542420150 is an abundant number, since it is smaller than the sum of its proper divisors (53222717034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31542420150 is a wasteful number, since it uses less digits than its factorization.

31542420150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17526 (or 17518 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 31542420150 its reverse (5102424513), we get a palindrome (36644844663).

The spelling of 31542420150 in words is "thirty-one billion, five hundred forty-two million, four hundred twenty thousand, one hundred fifty".